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提交 04fad57f 编写于 作者: A Alexander Alekhin
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samples: fix python samples compatibility with demo.py

上级 f4c2c441
隐藏空白更改
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Showing with 688 addition and 413 deletion
samples/python/asift.py
浏览文件 @ 04fad57f
......@@ -106,9 +106,8 @@ def affine_detect(detector, img, mask=None, pool=None):
print()
return keypoints, np.array(descrs)
if __name__ == '__main__':
print(__doc__)
def main():
import sys, getopt
opts, args = getopt.getopt(sys.argv[1:], '', ['feature='])
opts = dict(opts)
......@@ -160,4 +159,10 @@ if __name__ == '__main__':
match_and_draw('affine find_obj')
cv.waitKey()
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/browse.py
浏览文件 @ 04fad57f
......@@ -26,11 +26,7 @@ import cv2 as cv
# built-in modules
import sys
if __name__ == '__main__':
print('This sample shows how to implement a simple hi resolution image navigation.')
print('USAGE: browse.py [image filename]')
print()
def main():
if len(sys.argv) > 1:
fn = cv.samples.findFile(sys.argv[1])
print('loading %s ...' % fn)
......@@ -62,4 +58,10 @@ if __name__ == '__main__':
cv.imshow('preview', small)
cv.setMouseCallback('preview', onmouse)
cv.waitKey()
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/calibrate.py
浏览文件 @ 04fad57f
......@@ -25,7 +25,7 @@ from common import splitfn
# built-in modules
import os
if __name__ == '__main__':
def main():
import sys
import getopt
from glob import glob
......@@ -126,4 +126,10 @@ if __name__ == '__main__':
print('Undistorted image written to: %s' % outfile)
cv.imwrite(outfile, dst)
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/camera_calibration_show_extrinsics.py
浏览文件 @ 04fad57f
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from mpl_toolkits.mplot3d import Axes3D
import matplotlib.pyplot as plt
# Python 2/3 compatibility
from __future__ import print_function
import numpy as np
from matplotlib import cm
from numpy import linspace
import argparse
import cv2 as cv
from numpy import linspace
def inverse_homogeneoux_matrix(M):
R = M[0:3, 0:3]
T = M[0:3, 3]
......@@ -119,6 +119,8 @@ def create_board_model(extrinsics, board_width, board_height, square_size, draw_
def draw_camera_boards(ax, camera_matrix, cam_width, cam_height, scale_focal,
extrinsics, board_width, board_height, square_size,
patternCentric):
from matplotlib import cm
min_values = np.zeros((3,1))
min_values = np.inf
max_values = np.zeros((3,1))
......@@ -158,6 +160,8 @@ def draw_camera_boards(ax, camera_matrix, cam_width, cam_height, scale_focal,
return min_values, max_values
def main():
import argparse
parser = argparse.ArgumentParser(description='Plot camera calibration extrinsics.',
formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument('--calibration', type=str, default='left_intrinsics.yml',
......@@ -179,6 +183,9 @@ def main():
camera_matrix = fs.getNode('camera_matrix').mat()
extrinsics = fs.getNode('extrinsic_parameters').mat()
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import Axes3D
fig = plt.figure()
ax = fig.gca(projection='3d')
ax.set_aspect("equal")
......@@ -211,6 +218,10 @@ def main():
ax.set_title('Extrinsic Parameters Visualization')
plt.show()
print('Done')
if __name__ == "__main__":
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/camshift.py
浏览文件 @ 04fad57f
......@@ -119,10 +119,10 @@ class App(object):
if __name__ == '__main__':
print(__doc__)
import sys
try:
video_src = sys.argv[1]
except:
video_src = 0
print(__doc__)
App(video_src).run()
samples/python/coherence.py
浏览文件 @ 04fad57f
......@@ -46,7 +46,7 @@ def coherence_filter(img, sigma = 11, str_sigma = 11, blend = 0.5, iter_n = 4):
return img
if __name__ == '__main__':
def main():
import sys
try:
fn = sys.argv[1]
......@@ -82,4 +82,11 @@ if __name__ == '__main__':
update()
if ch == 27:
break
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/color_histogram.py
浏览文件 @ 04fad57f
......@@ -8,6 +8,9 @@ Keys:
'''
# Python 2/3 compatibility
from __future__ import print_function
import numpy as np
import cv2 as cv
......@@ -17,46 +20,54 @@ import sys
# local modules
import video
if __name__ == '__main__':
class App():
def set_scale(self, val):
self.hist_scale = val
def run(self):
hsv_map = np.zeros((180, 256, 3), np.uint8)
h, s = np.indices(hsv_map.shape[:2])
hsv_map[:,:,0] = h
hsv_map[:,:,1] = s
hsv_map[:,:,2] = 255
hsv_map = cv.cvtColor(hsv_map, cv.COLOR_HSV2BGR)
cv.imshow('hsv_map', hsv_map)
cv.namedWindow('hist', 0)
self.hist_scale = 10
cv.createTrackbar('scale', 'hist', self.hist_scale, 32, self.set_scale)
try:
fn = sys.argv[1]
except:
fn = 0
cam = video.create_capture(fn, fallback='synth:bg=baboon.jpg:class=chess:noise=0.05')
while True:
flag, frame = cam.read()
cv.imshow('camera', frame)
hsv_map = np.zeros((180, 256, 3), np.uint8)
h, s = np.indices(hsv_map.shape[:2])
hsv_map[:,:,0] = h
hsv_map[:,:,1] = s
hsv_map[:,:,2] = 255
hsv_map = cv.cvtColor(hsv_map, cv.COLOR_HSV2BGR)
cv.imshow('hsv_map', hsv_map)
cv.namedWindow('hist', 0)
hist_scale = 10
def set_scale(val):
global hist_scale
hist_scale = val
cv.createTrackbar('scale', 'hist', hist_scale, 32, set_scale)
try:
fn = sys.argv[1]
except:
fn = 0
cam = video.create_capture(fn, fallback='synth:bg=baboon.jpg:class=chess:noise=0.05')
while True:
flag, frame = cam.read()
cv.imshow('camera', frame)
small = cv.pyrDown(frame)
hsv = cv.cvtColor(small, cv.COLOR_BGR2HSV)
dark = hsv[...,2] < 32
hsv[dark] = 0
h = cv.calcHist([hsv], [0, 1], None, [180, 256], [0, 180, 0, 256])
h = np.clip(h*0.005*hist_scale, 0, 1)
vis = hsv_map*h[:,:,np.newaxis] / 255.0
cv.imshow('hist', vis)
ch = cv.waitKey(1)
if ch == 27:
break
small = cv.pyrDown(frame)
hsv = cv.cvtColor(small, cv.COLOR_BGR2HSV)
dark = hsv[...,2] < 32
hsv[dark] = 0
h = cv.calcHist([hsv], [0, 1], None, [180, 256], [0, 180, 0, 256])
h = np.clip(h*0.005*self.hist_scale, 0, 1)
vis = hsv_map*h[:,:,np.newaxis] / 255.0
cv.imshow('hist', vis)
ch = cv.waitKey(1)
if ch == 27:
break
print('Done')
if __name__ == '__main__':
print(__doc__)
App().run()
cv.destroyAllWindows()
samples/python/contours.py
浏览文件 @ 04fad57f
......@@ -48,9 +48,7 @@ def make_image():
cv.ellipse( img, (dx+273, dy+100), (20,35), 0, 0, 360, white, -1 )
return img
if __name__ == '__main__':
print(__doc__)
def main():
img = make_image()
h, w = img.shape[:2]
......@@ -67,4 +65,10 @@ if __name__ == '__main__':
cv.createTrackbar( "levels+3", "contours", 3, 7, update )
cv.imshow('image', img)
cv.waitKey()
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/deconvolution.py
浏览文件 @ 04fad57f
......@@ -65,8 +65,7 @@ def defocus_kernel(d, sz=65):
return kern
if __name__ == '__main__':
print(__doc__)
def main():
import sys, getopt
opts, args = getopt.getopt(sys.argv[1:], '', ['circle', 'angle=', 'd=', 'snr='])
opts = dict(opts)
......@@ -128,3 +127,11 @@ if __name__ == '__main__':
if ch == ord(' '):
defocus = not defocus
update(None)
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/dft.py
浏览文件 @ 04fad57f
......@@ -11,8 +11,9 @@ USAGE:
# Python 2/3 compatibility
from __future__ import print_function
import cv2 as cv
import numpy as np
import cv2 as cv
import sys
......@@ -62,8 +63,8 @@ def shift_dft(src, dst=None):
return dst
if __name__ == "__main__":
def main():
if len(sys.argv) > 1:
fname = sys.argv[1]
else:
......@@ -110,4 +111,10 @@ if __name__ == "__main__":
cv.imshow("magnitude", log_spectrum)
cv.waitKey(0)
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/digits.py
浏览文件 @ 04fad57f
......@@ -27,12 +27,12 @@ Usage:
# Python 2/3 compatibility
from __future__ import print_function
import numpy as np
import cv2 as cv
# built-in modules
from multiprocessing.pool import ThreadPool
import cv2 as cv
import numpy as np
from numpy.linalg import norm
# local modules
......
samples/python/digits_adjust.py
浏览文件 @ 04fad57f
......@@ -23,6 +23,7 @@ if PY3:
import numpy as np
import cv2 as cv
from multiprocessing.pool import ThreadPool
from digits import *
......
samples/python/digits_video.py
浏览文件 @ 04fad57f
......@@ -96,6 +96,10 @@ def main():
if ch == 27:
break
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/distrans.py
浏览文件 @ 04fad57f
......@@ -19,13 +19,12 @@ import cv2 as cv
from common import make_cmap
if __name__ == '__main__':
def main():
import sys
try:
fn = sys.argv[1]
except:
fn = 'fruits.jpg'
print(__doc__)
fn = cv.samples.findFile(fn)
img = cv.imread(fn, cv.IMREAD_GRAYSCALE)
......@@ -69,4 +68,11 @@ if __name__ == '__main__':
update()
if need_update:
update()
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/edge.py
浏览文件 @ 04fad57f
......@@ -23,9 +23,7 @@ import video
import sys
if __name__ == '__main__':
print(__doc__)
def main():
try:
fn = sys.argv[1]
except:
......@@ -52,4 +50,11 @@ if __name__ == '__main__':
ch = cv.waitKey(5)
if ch == 27:
break
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/facedetect.py
浏览文件 @ 04fad57f
......@@ -30,9 +30,8 @@ def draw_rects(img, rects, color):
for x1, y1, x2, y2 in rects:
cv.rectangle(img, (x1, y1), (x2, y2), color, 2)
if __name__ == '__main__':
def main():
import sys, getopt
print(__doc__)
args, video_src = getopt.getopt(sys.argv[1:], '', ['cascade=', 'nested-cascade='])
try:
......@@ -70,4 +69,11 @@ if __name__ == '__main__':
if cv.waitKey(5) == 27:
break
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/find_obj.py
浏览文件 @ 04fad57f
......@@ -19,6 +19,7 @@ from __future__ import print_function
import numpy as np
import cv2 as cv
from common import anorm, getsize
FLANN_INDEX_KDTREE = 1 # bug: flann enums are missing
......@@ -137,9 +138,7 @@ def explore_match(win, img1, img2, kp_pairs, status = None, H = None):
return vis
if __name__ == '__main__':
print(__doc__)
def main():
import sys, getopt
opts, args = getopt.getopt(sys.argv[1:], '', ['feature='])
opts = dict(opts)
......@@ -187,4 +186,11 @@ if __name__ == '__main__':
match_and_draw('find_obj')
cv.waitKey()
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/fitline.py
浏览文件 @ 04fad57f
......@@ -79,9 +79,7 @@ def update(_=None):
draw_str(img, (20, 20), cur_func_name)
cv.imshow('fit line', img)
if __name__ == '__main__':
print(__doc__)
def main():
cv.namedWindow('fit line')
cv.createTrackbar('noise', 'fit line', 3, 50, update)
cv.createTrackbar('point n', 'fit line', 100, 500, update)
......@@ -96,3 +94,11 @@ if __name__ == '__main__':
cur_func_name = dist_func_names.next()
if ch == 27:
break
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/floodfill.py
浏览文件 @ 04fad57f
......@@ -20,61 +20,69 @@ from __future__ import print_function
import numpy as np
import cv2 as cv
if __name__ == '__main__':
import sys
try:
fn = sys.argv[1]
except:
fn = 'fruits.jpg'
print(__doc__)
import sys
img = cv.imread(cv.samples.findFile(fn))
if img is None:
print('Failed to load image file:', fn)
sys.exit(1)
class App():
h, w = img.shape[:2]
mask = np.zeros((h+2, w+2), np.uint8)
seed_pt = None
fixed_range = True
connectivity = 4
def update(dummy=None):
if seed_pt is None:
cv.imshow('floodfill', img)
def update(self, dummy=None):
if self.seed_pt is None:
cv.imshow('floodfill', self.img)
return
flooded = img.copy()
mask[:] = 0
flooded = self.img.copy()
self.mask[:] = 0
lo = cv.getTrackbarPos('lo', 'floodfill')
hi = cv.getTrackbarPos('hi', 'floodfill')
flags = connectivity
if fixed_range:
flags = self.connectivity
if self.fixed_range:
flags |= cv.FLOODFILL_FIXED_RANGE
cv.floodFill(flooded, mask, seed_pt, (255, 255, 255), (lo,)*3, (hi,)*3, flags)
cv.circle(flooded, seed_pt, 2, (0, 0, 255), -1)
cv.floodFill(flooded, self.mask, self.seed_pt, (255, 255, 255), (lo,)*3, (hi,)*3, flags)
cv.circle(flooded, self.seed_pt, 2, (0, 0, 255), -1)
cv.imshow('floodfill', flooded)
def onmouse(event, x, y, flags, param):
global seed_pt
def onmouse(self, event, x, y, flags, param):
if flags & cv.EVENT_FLAG_LBUTTON:
seed_pt = x, y
update()
update()
cv.setMouseCallback('floodfill', onmouse)
cv.createTrackbar('lo', 'floodfill', 20, 255, update)
cv.createTrackbar('hi', 'floodfill', 20, 255, update)
while True:
ch = cv.waitKey()
if ch == 27:
break
if ch == ord('f'):
fixed_range = not fixed_range
print('using %s range' % ('floating', 'fixed')[fixed_range])
update()
if ch == ord('c'):
connectivity = 12-connectivity
print('connectivity =', connectivity)
update()
self.seed_pt = x, y
self.update()
def run(self):
try:
fn = sys.argv[1]
except:
fn = 'fruits.jpg'
self.img = cv.imread(cv.samples.findFile(fn))
if self.img is None:
print('Failed to load image file:', fn)
sys.exit(1)
h, w = self.img.shape[:2]
self.mask = np.zeros((h+2, w+2), np.uint8)
self.seed_pt = None
self.fixed_range = True
self.connectivity = 4
self.update()
cv.setMouseCallback('floodfill', self.onmouse)
cv.createTrackbar('lo', 'floodfill', 20, 255, self.update)
cv.createTrackbar('hi', 'floodfill', 20, 255, self.update)
while True:
ch = cv.waitKey()
if ch == 27:
break
if ch == ord('f'):
self.fixed_range = not self.fixed_range
print('using %s range' % ('floating', 'fixed')[self.fixed_range])
self.update()
if ch == ord('c'):
self.connectivity = 12-self.connectivity
print('connectivity =', self.connectivity)
self.update()
print('Done')
if __name__ == '__main__':
print(__doc__)
App().run()
cv.destroyAllWindows()
samples/python/gabor_threads.py
浏览文件 @ 04fad57f
......@@ -19,6 +19,7 @@ from __future__ import print_function
import numpy as np
import cv2 as cv
from multiprocessing.pool import ThreadPool
......@@ -47,11 +48,10 @@ def process_threaded(img, filters, threadn = 8):
np.maximum(accum, fimg, accum)
return accum
if __name__ == '__main__':
def main():
import sys
from common import Timer
print(__doc__)
try:
img_fn = sys.argv[1]
except:
......@@ -73,4 +73,10 @@ if __name__ == '__main__':
cv.imshow('img', img)
cv.imshow('result', res2)
cv.waitKey()
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/gaussian_mix.py
浏览文件 @ 04fad57f
......@@ -9,9 +9,10 @@ if PY3:
xrange = range
import numpy as np
from numpy import random
import cv2 as cv
from numpy import random
def make_gaussians(cluster_n, img_size):
points = []
ref_distrs = []
......@@ -34,7 +35,7 @@ def draw_gaussain(img, mean, cov, color):
cv.ellipse(img, (x, y), (s1, s2), ang, 0, 360, color, 1, cv.LINE_AA)
if __name__ == '__main__':
def main():
cluster_n = 5
img_size = 512
......@@ -66,4 +67,11 @@ if __name__ == '__main__':
ch = cv.waitKey(0)
if ch == 27:
break
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/grabcut.py
浏览文件 @ 04fad57f
......@@ -32,148 +32,154 @@ from __future__ import print_function
import numpy as np
import cv2 as cv
import sys
BLUE = [255,0,0] # rectangle color
RED = [0,0,255] # PR BG
GREEN = [0,255,0] # PR FG
BLACK = [0,0,0] # sure BG
WHITE = [255,255,255] # sure FG
DRAW_BG = {'color' : BLACK, 'val' : 0}
DRAW_FG = {'color' : WHITE, 'val' : 1}
DRAW_PR_FG = {'color' : GREEN, 'val' : 3}
DRAW_PR_BG = {'color' : RED, 'val' : 2}
# setting up flags
rect = (0,0,1,1)
drawing = False # flag for drawing curves
rectangle = False # flag for drawing rect
rect_over = False # flag to check if rect drawn
rect_or_mask = 100 # flag for selecting rect or mask mode
value = DRAW_FG # drawing initialized to FG
thickness = 3 # brush thickness
def onmouse(event,x,y,flags,param):
global img,img2,drawing,value,mask,rectangle,rect,rect_or_mask,ix,iy,rect_over
# Draw Rectangle
if event == cv.EVENT_RBUTTONDOWN:
rectangle = True
ix,iy = x,y
elif event == cv.EVENT_MOUSEMOVE:
if rectangle == True:
img = img2.copy()
cv.rectangle(img,(ix,iy),(x,y),BLUE,2)
rect = (min(ix,x),min(iy,y),abs(ix-x),abs(iy-y))
rect_or_mask = 0
elif event == cv.EVENT_RBUTTONUP:
rectangle = False
rect_over = True
cv.rectangle(img,(ix,iy),(x,y),BLUE,2)
rect = (min(ix,x),min(iy,y),abs(ix-x),abs(iy-y))
rect_or_mask = 0
print(" Now press the key 'n' a few times until no further change \n")
# draw touchup curves
if event == cv.EVENT_LBUTTONDOWN:
if rect_over == False:
print("first draw rectangle \n")
class App():
BLUE = [255,0,0] # rectangle color
RED = [0,0,255] # PR BG
GREEN = [0,255,0] # PR FG
BLACK = [0,0,0] # sure BG
WHITE = [255,255,255] # sure FG
DRAW_BG = {'color' : BLACK, 'val' : 0}
DRAW_FG = {'color' : WHITE, 'val' : 1}
DRAW_PR_FG = {'color' : GREEN, 'val' : 3}
DRAW_PR_BG = {'color' : RED, 'val' : 2}
# setting up flags
rect = (0,0,1,1)
drawing = False # flag for drawing curves
rectangle = False # flag for drawing rect
rect_over = False # flag to check if rect drawn
rect_or_mask = 100 # flag for selecting rect or mask mode
value = DRAW_FG # drawing initialized to FG
thickness = 3 # brush thickness
def onmouse(self, event, x, y, flags, param):
# Draw Rectangle
if event == cv.EVENT_RBUTTONDOWN:
self.rectangle = True
self.ix, self.iy = x,y
elif event == cv.EVENT_MOUSEMOVE:
if self.rectangle == True:
self.img = self.img2.copy()
cv.rectangle(self.img, (self.ix, self.iy), (x, y), self.BLUE, 2)
self.rect = (min(self.ix, x), min(self.iy, y), abs(self.ix - x), abs(self.iy - y))
self.rect_or_mask = 0
elif event == cv.EVENT_RBUTTONUP:
self.rectangle = False
self.rect_over = True
cv.rectangle(self.img, (self.ix, self.iy), (x, y), self.BLUE, 2)
self.rect = (min(self.ix, x), min(self.iy, y), abs(self.ix - x), abs(self.iy - y))
self.rect_or_mask = 0
print(" Now press the key 'n' a few times until no further change \n")
# draw touchup curves
if event == cv.EVENT_LBUTTONDOWN:
if self.rect_over == False:
print("first draw rectangle \n")
else:
self.drawing = True
cv.circle(self.img, (x,y), self.thickness, self.value['color'], -1)
cv.circle(self.mask, (x,y), self.thickness, self.value['val'], -1)
elif event == cv.EVENT_MOUSEMOVE:
if self.drawing == True:
cv.circle(self.img, (x, y), self.thickness, self.value['color'], -1)
cv.circle(self.mask, (x, y), self.thickness, self.value['val'], -1)
elif event == cv.EVENT_LBUTTONUP:
if self.drawing == True:
self.drawing = False
cv.circle(self.img, (x, y), self.thickness, self.value['color'], -1)
cv.circle(self.mask, (x, y), self.thickness, self.value['val'], -1)
def run(self):
# Loading images
if len(sys.argv) == 2:
filename = sys.argv[1] # for drawing purposes
else:
drawing = True
cv.circle(img,(x,y),thickness,value['color'],-1)
cv.circle(mask,(x,y),thickness,value['val'],-1)
elif event == cv.EVENT_MOUSEMOVE:
if drawing == True:
cv.circle(img,(x,y),thickness,value['color'],-1)
cv.circle(mask,(x,y),thickness,value['val'],-1)
print("No input image given, so loading default image, lena.jpg \n")
print("Correct Usage: python grabcut.py <filename> \n")
filename = 'lena.jpg'
self.img = cv.imread(cv.samples.findFile(filename))
self.img2 = self.img.copy() # a copy of original image
self.mask = np.zeros(self.img.shape[:2], dtype = np.uint8) # mask initialized to PR_BG
self.output = np.zeros(self.img.shape, np.uint8) # output image to be shown
# input and output windows
cv.namedWindow('output')
cv.namedWindow('input')
cv.setMouseCallback('input', self.onmouse)
cv.moveWindow('input', self.img.shape[1]+10,90)
print(" Instructions: \n")
print(" Draw a rectangle around the object using right mouse button \n")
while(1):
cv.imshow('output', self.output)
cv.imshow('input', self.img)
k = cv.waitKey(1)
# key bindings
if k == 27: # esc to exit
break
elif k == ord('0'): # BG drawing
print(" mark background regions with left mouse button \n")
self.value = self.DRAW_BG
elif k == ord('1'): # FG drawing
print(" mark foreground regions with left mouse button \n")
self.value = self.DRAW_FG
elif k == ord('2'): # PR_BG drawing
self.value = self.DRAW_PR_BG
elif k == ord('3'): # PR_FG drawing
self.value = self.DRAW_PR_FG
elif k == ord('s'): # save image
bar = np.zeros((self.img.shape[0], 5, 3), np.uint8)
res = np.hstack((self.img2, bar, self.img, bar, self.output))
cv.imwrite('grabcut_output.png', res)
print(" Result saved as image \n")
elif k == ord('r'): # reset everything
print("resetting \n")
self.rect = (0,0,1,1)
self.drawing = False
self.rectangle = False
self.rect_or_mask = 100
self.rect_over = False
self.value = self.DRAW_FG
self.img = self.img2.copy()
self.mask = np.zeros(self.img.shape[:2], dtype = np.uint8) # mask initialized to PR_BG
self.output = np.zeros(self.img.shape, np.uint8) # output image to be shown
elif k == ord('n'): # segment the image
print(""" For finer touchups, mark foreground and background after pressing keys 0-3
and again press 'n' \n""")
try:
if (self.rect_or_mask == 0): # grabcut with rect
bgdmodel = np.zeros((1, 65), np.float64)
fgdmodel = np.zeros((1, 65), np.float64)
cv.grabCut(self.img2, self.mask, self.rect, bgdmodel, fgdmodel, 1, cv.GC_INIT_WITH_RECT)
self.rect_or_mask = 1
elif self.rect_or_mask == 1: # grabcut with mask
bgdmodel = np.zeros((1, 65), np.float64)
fgdmodel = np.zeros((1, 65), np.float64)
cv.grabCut(self.img2, self.mask, self.rect, bgdmodel, fgdmodel, 1, cv.GC_INIT_WITH_MASK)
except:
import traceback
traceback.print_exc()
mask2 = np.where((self.mask==1) + (self.mask==3), 255, 0).astype('uint8')
self.output = cv.bitwise_and(self.img2, self.img2, mask=mask2)
print('Done')
elif event == cv.EVENT_LBUTTONUP:
if drawing == True:
drawing = False
cv.circle(img,(x,y),thickness,value['color'],-1)
cv.circle(mask,(x,y),thickness,value['val'],-1)
if __name__ == '__main__':
# print documentation
print(__doc__)
# Loading images
if len(sys.argv) == 2:
filename = sys.argv[1] # for drawing purposes
else:
print("No input image given, so loading default image, lena.jpg \n")
print("Correct Usage: python grabcut.py <filename> \n")
filename = 'lena.jpg'
img = cv.imread(cv.samples.findFile(filename))
img2 = img.copy() # a copy of original image
mask = np.zeros(img.shape[:2],dtype = np.uint8) # mask initialized to PR_BG
output = np.zeros(img.shape,np.uint8) # output image to be shown
# input and output windows
cv.namedWindow('output')
cv.namedWindow('input')
cv.setMouseCallback('input',onmouse)
cv.moveWindow('input',img.shape[1]+10,90)
print(" Instructions: \n")
print(" Draw a rectangle around the object using right mouse button \n")
while(1):
cv.imshow('output',output)
cv.imshow('input',img)
k = cv.waitKey(1)
# key bindings
if k == 27: # esc to exit
break
elif k == ord('0'): # BG drawing
print(" mark background regions with left mouse button \n")
value = DRAW_BG
elif k == ord('1'): # FG drawing
print(" mark foreground regions with left mouse button \n")
value = DRAW_FG
elif k == ord('2'): # PR_BG drawing
value = DRAW_PR_BG
elif k == ord('3'): # PR_FG drawing
value = DRAW_PR_FG
elif k == ord('s'): # save image
bar = np.zeros((img.shape[0],5,3),np.uint8)
res = np.hstack((img2,bar,img,bar,output))
cv.imwrite('grabcut_output.png',res)
print(" Result saved as image \n")
elif k == ord('r'): # reset everything
print("resetting \n")
rect = (0,0,1,1)
drawing = False
rectangle = False
rect_or_mask = 100
rect_over = False
value = DRAW_FG
img = img2.copy()
mask = np.zeros(img.shape[:2],dtype = np.uint8) # mask initialized to PR_BG
output = np.zeros(img.shape,np.uint8) # output image to be shown
elif k == ord('n'): # segment the image
print(""" For finer touchups, mark foreground and background after pressing keys 0-3
and again press 'n' \n""")
if (rect_or_mask == 0): # grabcut with rect
bgdmodel = np.zeros((1,65),np.float64)
fgdmodel = np.zeros((1,65),np.float64)
cv.grabCut(img2,mask,rect,bgdmodel,fgdmodel,1,cv.GC_INIT_WITH_RECT)
rect_or_mask = 1
elif rect_or_mask == 1: # grabcut with mask
bgdmodel = np.zeros((1,65),np.float64)
fgdmodel = np.zeros((1,65),np.float64)
cv.grabCut(img2,mask,rect,bgdmodel,fgdmodel,1,cv.GC_INIT_WITH_MASK)
mask2 = np.where((mask==1) + (mask==3),255,0).astype('uint8')
output = cv.bitwise_and(img2,img2,mask=mask2)
App().run()
cv.destroyAllWindows()
samples/python/hist.py
浏览文件 @ 04fad57f
......@@ -18,8 +18,8 @@ Abid Rahman 3/14/12 debug Gary Bradski
# Python 2/3 compatibility
from __future__ import print_function
import cv2 as cv
import numpy as np
import cv2 as cv
bins = np.arange(256).reshape(256,1)
......@@ -53,8 +53,7 @@ def hist_lines(im):
return y
if __name__ == '__main__':
def main():
import sys
if len(sys.argv)>1:
......@@ -116,4 +115,11 @@ if __name__ == '__main__':
print('ESC')
cv.destroyAllWindows()
break
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/houghcircles.py
浏览文件 @ 04fad57f
......@@ -11,13 +11,12 @@ Usage:
# Python 2/3 compatibility
from __future__ import print_function
import cv2 as cv
import numpy as np
import sys
import cv2 as cv
if __name__ == '__main__':
print(__doc__)
import sys
def main():
try:
fn = sys.argv[1]
except IndexError:
......@@ -40,3 +39,10 @@ if __name__ == '__main__':
cv.imshow("source", src)
cv.waitKey(0)
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/houghlines.py
浏览文件 @ 04fad57f
......@@ -13,12 +13,11 @@ from __future__ import print_function
import cv2 as cv
import numpy as np
import sys
import math
if __name__ == '__main__':
print(__doc__)
def main():
try:
fn = sys.argv[1]
except IndexError:
......@@ -52,3 +51,10 @@ if __name__ == '__main__':
cv.imshow("source", src)
cv.waitKey(0)
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/inpaint.py
浏览文件 @ 04fad57f
......@@ -20,17 +20,16 @@ from __future__ import print_function
import numpy as np
import cv2 as cv
from common import Sketcher
if __name__ == '__main__':
def main():
import sys
try:
fn = sys.argv[1]
except:
fn = 'fruits.jpg'
print(__doc__)
img = cv.imread(cv.samples.findFile(fn))
if img is None:
print('Failed to load image file:', fn)
......@@ -51,4 +50,11 @@ if __name__ == '__main__':
img_mark[:] = img
mark[:] = 0
sketch.show()
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/kalman.py
浏览文件 @ 04fad57f
......@@ -18,12 +18,13 @@ PY3 = sys.version_info[0] == 3
if PY3:
long = int
import numpy as np
import cv2 as cv
from math import cos, sin, sqrt
import numpy as np
if __name__ == "__main__":
def main():
img_height = 500
img_width = 500
kalman = cv.KalmanFilter(2, 1, 0)
......@@ -93,4 +94,10 @@ if __name__ == "__main__":
if code in [27, ord('q'), ord('Q')]:
break
cv.destroyWindow("Kalman")
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/kmeans.py
浏览文件 @ 04fad57f
......@@ -18,12 +18,10 @@ import cv2 as cv
from gaussian_mix import make_gaussians
if __name__ == '__main__':
def main():
cluster_n = 5
img_size = 512
print(__doc__)
# generating bright palette
colors = np.zeros((1, cluster_n, 3), np.uint8)
colors[0,:] = 255
......@@ -43,8 +41,15 @@ if __name__ == '__main__':
cv.circle(img, (x, y), 1, c, -1)
cv.imshow('gaussian mixture', img)
cv.imshow('kmeans', img)
ch = cv.waitKey(0)
if ch == 27:
break
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/lappyr.py
浏览文件 @ 04fad57f
......@@ -22,6 +22,7 @@ if PY3:
import numpy as np
import cv2 as cv
import video
from common import nothing, getsize
......@@ -44,9 +45,8 @@ def merge_lappyr(levels):
return np.uint8(np.clip(img, 0, 255))
if __name__ == '__main__':
def main():
import sys
print(__doc__)
try:
fn = sys.argv[1]
......@@ -72,3 +72,11 @@ if __name__ == '__main__':
if cv.waitKey(1) == 27:
break
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/letter_recog.py
浏览文件 @ 04fad57f
......@@ -145,12 +145,10 @@ class MLP(LetterStatModel):
if __name__ == '__main__':
def main():
import getopt
import sys
print(__doc__)
models = [RTrees, KNearest, Boost, SVM, MLP] # NBayes
models = dict( [(cls.__name__.lower(), cls) for cls in models] )
......@@ -186,4 +184,11 @@ if __name__ == '__main__':
fn = args['--save']
print('saving model to %s ...' % fn)
model.save(fn)
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/lk_homography.py
浏览文件 @ 04fad57f
......@@ -25,6 +25,7 @@ from __future__ import print_function
import numpy as np
import cv2 as cv
import video
from common import draw_str
from video import presets
......@@ -112,9 +113,11 @@ def main():
except:
video_src = 0
print(__doc__)
App(video_src).run()
cv.destroyAllWindows()
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/lk_track.py
浏览文件 @ 04fad57f
......@@ -23,6 +23,7 @@ from __future__ import print_function
import numpy as np
import cv2 as cv
import video
from common import anorm2, draw_str
from time import clock
......@@ -96,9 +97,11 @@ def main():
except:
video_src = 0
print(__doc__)
App(video_src).run()
cv.destroyAllWindows()
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/logpolar.py
浏览文件 @ 04fad57f
......@@ -13,11 +13,10 @@ Keys:
# Python 2/3 compatibility
from __future__ import print_function
import numpy as np
import cv2 as cv
if __name__ == '__main__':
print(__doc__)
def main():
import sys
try:
fn = sys.argv[1]
......@@ -37,3 +36,10 @@ if __name__ == '__main__':
cv.imshow('linearpolar', img3)
cv.waitKey(0)
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/morphology.py
浏览文件 @ 04fad57f
......@@ -21,9 +21,7 @@ import numpy as np
import cv2 as cv
if __name__ == '__main__':
print(__doc__)
def main():
import sys
from itertools import cycle
from common import draw_str
......@@ -93,4 +91,11 @@ if __name__ == '__main__':
else:
cur_str_mode = str_modes.next()
update()
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/mouse_and_match.py
浏览文件 @ 04fad57f
......@@ -25,59 +25,64 @@ import argparse
from math import *
drag_start = None
sel = (0,0,0,0)
class App():
drag_start = None
sel = (0,0,0,0)
def onmouse(event, x, y, flags, param):
global drag_start, sel
if event == cv.EVENT_LBUTTONDOWN:
drag_start = x, y
sel = 0,0,0,0
elif event == cv.EVENT_LBUTTONUP:
if sel[2] > sel[0] and sel[3] > sel[1]:
patch = gray[sel[1]:sel[3],sel[0]:sel[2]]
result = cv.matchTemplate(gray,patch,cv.TM_CCOEFF_NORMED)
result = np.abs(result)**3
_val, result = cv.threshold(result, 0.01, 0, cv.THRESH_TOZERO)
result8 = cv.normalize(result,None,0,255,cv.NORM_MINMAX,cv.CV_8U)
cv.imshow("result", result8)
drag_start = None
elif drag_start:
#print flags
if flags & cv.EVENT_FLAG_LBUTTON:
minpos = min(drag_start[0], x), min(drag_start[1], y)
maxpos = max(drag_start[0], x), max(drag_start[1], y)
sel = minpos[0], minpos[1], maxpos[0], maxpos[1]
img = cv.cvtColor(gray, cv.COLOR_GRAY2BGR)
cv.rectangle(img, (sel[0], sel[1]), (sel[2], sel[3]), (0,255,255), 1)
cv.imshow("gray", img)
else:
print("selection is complete")
drag_start = None
def onmouse(self, event, x, y, flags, param):
if event == cv.EVENT_LBUTTONDOWN:
self.drag_start = x, y
self.sel = (0,0,0,0)
elif event == cv.EVENT_LBUTTONUP:
if self.sel[2] > self.sel[0] and self.sel[3] > self.sel[1]:
patch = self.gray[self.sel[1]:self.sel[3], self.sel[0]:self.sel[2]]
result = cv.matchTemplate(self.gray, patch, cv.TM_CCOEFF_NORMED)
result = np.abs(result)**3
_val, result = cv.threshold(result, 0.01, 0, cv.THRESH_TOZERO)
result8 = cv.normalize(result, None, 0, 255, cv.NORM_MINMAX, cv.CV_8U)
cv.imshow("result", result8)
self.drag_start = None
elif self.drag_start:
#print flags
if flags & cv.EVENT_FLAG_LBUTTON:
minpos = min(self.drag_start[0], x), min(self.drag_start[1], y)
maxpos = max(self.drag_start[0], x), max(self.drag_start[1], y)
self.sel = (minpos[0], minpos[1], maxpos[0], maxpos[1])
img = cv.cvtColor(self.gray, cv.COLOR_GRAY2BGR)
cv.rectangle(img, (self.sel[0], self.sel[1]), (self.sel[2], self.sel[3]), (0,255,255), 1)
cv.imshow("gray", img)
else:
print("selection is complete")
self.drag_start = None
if __name__ == '__main__':
print(__doc__)
def run(self):
parser = argparse.ArgumentParser(description='Demonstrate mouse interaction with images')
parser.add_argument("-i","--input", default='../data/', help="Input directory.")
args = parser.parse_args()
path = args.input
cv.namedWindow("gray",1)
cv.setMouseCallback("gray", self.onmouse)
'''Loop through all the images in the directory'''
for infile in glob.glob( os.path.join(path, '*.*') ):
ext = os.path.splitext(infile)[1][1:] #get the filename extension
if ext == "png" or ext == "jpg" or ext == "bmp" or ext == "tiff" or ext == "pbm":
print(infile)
parser = argparse.ArgumentParser(description='Demonstrate mouse interaction with images')
parser.add_argument("-i","--input", default='../data/', help="Input directory.")
args = parser.parse_args()
path = args.input
img = cv.imread(infile,1)
if img is None:
continue
self.sel = (0,0,0,0)
self.drag_start = None
self.gray = cv.cvtColor(img, cv.COLOR_BGR2GRAY)
cv.imshow("gray", self.gray)
if cv.waitKey() == 27:
break
cv.namedWindow("gray",1)
cv.setMouseCallback("gray", onmouse)
'''Loop through all the images in the directory'''
for infile in glob.glob( os.path.join(path, '*.*') ):
ext = os.path.splitext(infile)[1][1:] #get the filename extension
if ext == "png" or ext == "jpg" or ext == "bmp" or ext == "tiff" or ext == "pbm":
print(infile)
print('Done')
img=cv.imread(infile,1)
if img is None:
continue
sel = (0,0,0,0)
drag_start = None
gray=cv.cvtColor(img, cv.COLOR_BGR2GRAY)
cv.imshow("gray",gray)
if cv.waitKey() == 27:
break
if __name__ == '__main__':
print(__doc__)
App().run()
cv.destroyAllWindows()
samples/python/mser.py
浏览文件 @ 04fad57f
......@@ -14,12 +14,16 @@ Keys:
'''
# Python 2/3 compatibility
from __future__ import print_function
import numpy as np
import cv2 as cv
import video
import sys
if __name__ == '__main__':
def main():
try:
video_src = sys.argv[1]
except:
......@@ -42,4 +46,11 @@ if __name__ == '__main__':
cv.imshow('img', vis)
if cv.waitKey(5) == 27:
break
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/opencv_version.py
浏览文件 @ 04fad57f
......@@ -13,11 +13,11 @@ Usage:
# Python 2/3 compatibility
from __future__ import print_function
import numpy as np
import cv2 as cv
if __name__ == '__main__':
def main():
import sys
print(__doc__)
try:
param = sys.argv[1]
......@@ -31,3 +31,11 @@ if __name__ == '__main__':
print("\t--help\n\t\tprint this help")
else:
print("Welcome to OpenCV")
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/opt_flow.py
浏览文件 @ 04fad57f
......@@ -18,6 +18,7 @@ from __future__ import print_function
import numpy as np
import cv2 as cv
import video
......@@ -55,9 +56,8 @@ def warp_flow(img, flow):
res = cv.remap(img, flow, None, cv.INTER_LINEAR)
return res
if __name__ == '__main__':
def main():
import sys
print(__doc__)
try:
fn = sys.argv[1]
except IndexError:
......@@ -94,4 +94,11 @@ if __name__ == '__main__':
if show_glitch:
cur_glitch = img.copy()
print('glitch is', ['off', 'on'][show_glitch])
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/peopledetect.py
浏览文件 @ 04fad57f
......@@ -30,13 +30,11 @@ def draw_detections(img, rects, thickness = 1):
cv.rectangle(img, (x+pad_w, y+pad_h), (x+w-pad_w, y+h-pad_h), (0, 255, 0), thickness)
if __name__ == '__main__':
def main():
import sys
from glob import glob
import itertools as it
print(__doc__)
hog = cv.HOGDescriptor()
hog.setSVMDetector( cv.HOGDescriptor_getDefaultPeopleDetector() )
......@@ -68,4 +66,11 @@ if __name__ == '__main__':
ch = cv.waitKey()
if ch == 27:
break
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/squares.py
浏览文件 @ 04fad57f
......@@ -7,6 +7,7 @@ Loads several images sequentially and tries to find squares in each image.
'''
# Python 2/3 compatibility
from __future__ import print_function
import sys
PY3 = sys.version_info[0] == 3
......@@ -42,7 +43,7 @@ def find_squares(img):
squares.append(cnt)
return squares
if __name__ == '__main__':
def main():
from glob import glob
for fn in glob('../data/pic*.png'):
img = cv.imread(fn)
......@@ -52,4 +53,11 @@ if __name__ == '__main__':
ch = cv.waitKey()
if ch == 27:
break
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/stereo_match.py
浏览文件 @ 04fad57f
......@@ -33,7 +33,7 @@ def write_ply(fn, verts, colors):
np.savetxt(f, verts, fmt='%f %f %f %d %d %d ')
if __name__ == '__main__':
def main():
print('loading images...')
imgL = cv.pyrDown(cv.imread(cv.samples.findFile('aloeL.jpg'))) # downscale images for faster processing
imgR = cv.pyrDown(cv.imread(cv.samples.findFile('aloeR.jpg')))
......@@ -75,4 +75,11 @@ if __name__ == '__main__':
cv.imshow('left', imgL)
cv.imshow('disparity', (disp-min_disp)/num_disp)
cv.waitKey()
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/texture_flow.py
浏览文件 @ 04fad57f
......@@ -16,7 +16,7 @@ from __future__ import print_function
import numpy as np
import cv2 as cv
if __name__ == '__main__':
def main():
import sys
try:
fn = sys.argv[1]
......@@ -45,3 +45,11 @@ if __name__ == '__main__':
cv.imshow('input', img)
cv.imshow('flow', vis)
cv.waitKey()
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/tst_scene_render.py
浏览文件 @ 04fad57f
......@@ -5,9 +5,10 @@
from __future__ import print_function
import numpy as np
import cv2 as cv
from numpy import pi, sin, cos
import cv2 as cv
defaultSize = 512
......@@ -86,7 +87,7 @@ class TestSceneRender():
else:
self.currentRect = self.initialRect + np.int( 30*cos(self.time*self.speed) + 50*sin(self.time*self.speed))
if self.deformation:
self.currentRect[1:3] += self.h/20*cos(self.time)
self.currentRect[1:3] += int(self.h/20*cos(self.time))
cv.fillConvexPoly(img, self.currentRect, (0, 0, 255))
self.time += self.timeStep
......@@ -96,8 +97,7 @@ class TestSceneRender():
self.time = 0.0
if __name__ == '__main__':
def main():
backGr = cv.imread(cv.samples.findFile('graf1.png'))
fgr = cv.imread(cv.samples.findFile('box.png'))
......@@ -111,6 +111,11 @@ if __name__ == '__main__':
ch = cv.waitKey(3)
if ch == 27:
break
#import os
#print (os.environ['PYTHONPATH'])
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/turing.py
浏览文件 @ 04fad57f
......@@ -27,7 +27,7 @@ USAGE: turing.py [-o <output.avi>]
Press ESC to stop.
'''
if __name__ == '__main__':
def main():
print(help_message)
w, h = 512, 512
......@@ -71,4 +71,11 @@ if __name__ == '__main__':
cv.imshow('a', vis)
if cv.waitKey(5) == 27:
break
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/video.py
浏览文件 @ 04fad57f
......@@ -32,13 +32,13 @@ Keys:
# Python 2/3 compatibility
from __future__ import print_function
import numpy as np
import cv2 as cv
import re
import numpy as np
from numpy import pi, sin, cos
import cv2 as cv
# built-in modules
from time import clock
......
samples/python/video_threaded.py
浏览文件 @ 04fad57f
......@@ -36,11 +36,9 @@ class DummyTask:
def get(self):
return self.data
if __name__ == '__main__':
def main():
import sys
print(__doc__)
try:
fn = sys.argv[1]
except:
......@@ -86,4 +84,11 @@ if __name__ == '__main__':
threaded_mode = not threaded_mode
if ch == 27:
break
cv.destroyAllWindows()
print('Done')
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/video_v4l2.py
浏览文件 @ 04fad57f
......@@ -17,51 +17,62 @@ Keys:
# Python 2/3 compatibility
from __future__ import print_function
import numpy as np
import cv2 as cv
def decode_fourcc(v):
v = int(v)
return "".join([chr((v >> 8 * i) & 0xFF) for i in range(4)])
def main():
font = cv.FONT_HERSHEY_SIMPLEX
color = (0, 255, 0)
def decode_fourcc(v):
v = int(v)
return "".join([chr((v >> 8 * i) & 0xFF) for i in range(4)])
cap = cv.VideoCapture(0)
cap.set(cv.CAP_PROP_AUTOFOCUS, False) # Known bug: https://github.com/opencv/opencv/pull/5474
font = cv.FONT_HERSHEY_SIMPLEX
color = (0, 255, 0)
cv.namedWindow("Video")
cap = cv.VideoCapture(0)
cap.set(cv.CAP_PROP_AUTOFOCUS, False) # Known bug: https://github.com/opencv/opencv/pull/5474
convert_rgb = True
fps = int(cap.get(cv.CAP_PROP_FPS))
focus = int(min(cap.get(cv.CAP_PROP_FOCUS) * 100, 2**31-1)) # ceil focus to C_LONG as Python3 int can go to +inf
cv.namedWindow("Video")
cv.createTrackbar("FPS", "Video", fps, 30, lambda v: cap.set(cv.CAP_PROP_FPS, v))
cv.createTrackbar("Focus", "Video", focus, 100, lambda v: cap.set(cv.CAP_PROP_FOCUS, v / 100))
convert_rgb = True
fps = int(cap.get(cv.CAP_PROP_FPS))
focus = int(min(cap.get(cv.CAP_PROP_FOCUS) * 100, 2**31-1)) # ceil focus to C_LONG as Python3 int can go to +inf
while True:
status, img = cap.read()
cv.createTrackbar("FPS", "Video", fps, 30, lambda v: cap.set(cv.CAP_PROP_FPS, v))
cv.createTrackbar("Focus", "Video", focus, 100, lambda v: cap.set(cv.CAP_PROP_FOCUS, v / 100))
fourcc = decode_fourcc(cap.get(cv.CAP_PROP_FOURCC))
while True:
status, img = cap.read()
fps = cap.get(cv.CAP_PROP_FPS)
fourcc = decode_fourcc(cap.get(cv.CAP_PROP_FOURCC))
if not bool(cap.get(cv.CAP_PROP_CONVERT_RGB)):
if fourcc == "MJPG":
img = cv.imdecode(img, cv.IMREAD_GRAYSCALE)
elif fourcc == "YUYV":
img = cv.cvtColor(img, cv.COLOR_YUV2GRAY_YUYV)
else:
print("unsupported format")
fps = cap.get(cv.CAP_PROP_FPS)
if not bool(cap.get(cv.CAP_PROP_CONVERT_RGB)):
if fourcc == "MJPG":
img = cv.imdecode(img, cv.IMREAD_GRAYSCALE)
elif fourcc == "YUYV":
img = cv.cvtColor(img, cv.COLOR_YUV2GRAY_YUYV)
else:
print("unsupported format")
break
cv.putText(img, "Mode: {}".format(fourcc), (15, 40), font, 1.0, color)
cv.putText(img, "FPS: {}".format(fps), (15, 80), font, 1.0, color)
cv.imshow("Video", img)
k = cv.waitKey(1)
if k == 27:
break
elif k == ord('g'):
convert_rgb = not convert_rgb
cap.set(cv.CAP_PROP_CONVERT_RGB, convert_rgb)
cv.putText(img, "Mode: {}".format(fourcc), (15, 40), font, 1.0, color)
cv.putText(img, "FPS: {}".format(fps), (15, 80), font, 1.0, color)
cv.imshow("Video", img)
print('Done')
k = cv.waitKey(1)
if k == 27:
break
elif k == ord('g'):
convert_rgb = not convert_rgb
cap.set(cv.CAP_PROP_CONVERT_RGB, convert_rgb)
if __name__ == '__main__':
print(__doc__)
main()
cv.destroyAllWindows()
samples/python/watershed.py
浏览文件 @ 04fad57f
......@@ -76,10 +76,10 @@ class App:
if __name__ == '__main__':
print(__doc__)
import sys
try:
fn = sys.argv[1]
except:
fn = 'fruits.jpg'
print(__doc__)
App(cv.samples.findFile(fn)).run()
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