Merge pull request #5529 from PeterH0323/PeterH_dygraph

NEW Feature: Add KIE function at PPOCRLabel 🚀 

PPOCRLabel/README.md

@@ -8,6 +8,8 @@ PPOCRLabel is a semi-automatic graphic annotation tool suitable for OCR field, w
 
 ### Recent Update
 
+- 2022.02：（by [PeterH0323](https://github.com/peterh0323) ）
+  - Added KIE mode, for [detection + identification + keyword extraction] labeling.
 - 2022.01：（by [PeterH0323](https://github.com/peterh0323) ）
   - Improve user experience: prompt for the number of files and labels, optimize interaction, and fix bugs such as only use CPU when inference
 - 2021.11.17:
@@ -72,7 +74,8 @@ PPOCRLabel
 ```bash
 pip3 install PPOCRLabel
 pip3 install opencv-contrib-python-headless==4.2.0.32
-PPOCRLabel # run
+PPOCRLabel  # [Normal mode] for [detection + recognition] labeling
+PPOCRLabel --kie True # [KIE mode] for [detection + recognition + keyword extraction] labeling
 ```
 
 #### 1.2.2 Build and Install the Whl Package Locally
@@ -87,7 +90,8 @@ pip3 install dist/PPOCRLabel-1.0.2-py2.py3-none-any.whl
 
 ```bash
 cd ./PPOCRLabel  # Switch to the PPOCRLabel directory
-python PPOCRLabel.py
+python PPOCRLabel.py  # [Normal mode] for [detection + recognition] labeling
+python PPOCRLabel.py --kie True # [KIE mode] for [detection + recognition + keyword extraction] labeling
 ```
 
 

PPOCRLabel/README_ch.md

@@ -8,6 +8,8 @@ PPOCRLabel是一款适用于OCR领域的半自动化图形标注工具，内置P
 
 #### 近期更新
 
+- 2022.02：（by [PeterH0323](https://github.com/peterh0323) ）
+  - 新增：KIE 功能，用于打【检测+识别+关键字提取】的标签
 - 2022.01：（by [PeterH0323](https://github.com/peterh0323) ）
   - 提升用户体验：新增文件与标记数目提示、优化交互、修复gpu使用等问题
 - 2021.11.17：
@@ -70,7 +72,8 @@ PPOCRLabel --lang ch
 ```bash
 pip3 install PPOCRLabel
 pip3 install opencv-contrib-python-headless==4.2.0.32 # 如果下载过慢请添加"-i https://mirror.baidu.com/pypi/simple"
-PPOCRLabel --lang ch # 启动
+PPOCRLabel --lang ch  # 启动【普通模式】，用于打【检测+识别】场景的标签
+PPOCRLabel --lang ch --kie True  # 启动 【KIE 模式】，用于打【检测+识别+关键字提取】场景的标签
 ```
 
 > 如果上述安装出现问题，可以参考3.6节 错误提示
@@ -89,7 +92,8 @@ pip3 install dist/PPOCRLabel-1.0.2-py2.py3-none-any.whl -i https://mirror.baidu.
 
 ```bash
 cd ./PPOCRLabel  # 切换到PPOCRLabel目录
-python PPOCRLabel.py --lang ch
+python PPOCRLabel.py --lang ch  # 启动【普通模式】，用于打【检测+识别】场景的标签
+python PPOCRLabel.py --lang ch --kie True  # 启动 【KIE 模式】，用于打【检测+识别+关键字提取】场景的标签
 ```
 
 

PPOCRLabel/libs/canvas.py

@@ -783,7 +783,7 @@ class Canvas(QWidget):
         points = [p1+p2 for p1, p2 in zip(self.selectedShape.points, [step]*4)]
         return True in map(self.outOfPixmap, points)
 
-    def setLastLabel(self, text, line_color  = None, fill_color = None):
+    def setLastLabel(self, text, line_color=None, fill_color=None, key_cls=None):
         assert text
         self.shapes[-1].label = text
         if line_color:
@@ -791,6 +791,10 @@ class Canvas(QWidget):
 
         if fill_color:
             self.shapes[-1].fill_color = fill_color
+
+        if key_cls:
+            self.shapes[-1].key_cls = key_cls
+
         self.storeShapes()
 
         return self.shapes[-1]

PPOCRLabel/libs/keyDialog.py

+import re
+
+from PyQt5 import QtCore
+from PyQt5 import QtGui
+from PyQt5 import QtWidgets
+from PyQt5.Qt import QT_VERSION_STR
+from libs.utils import newIcon, labelValidator
+
+QT5 = QT_VERSION_STR[0] == '5'
+
+
+# TODO(unknown):
+# - Calculate optimal position so as not to go out of screen area.
+
+
+class KeyQLineEdit(QtWidgets.QLineEdit):
+    def setListWidget(self, list_widget):
+        self.list_widget = list_widget
+
+    def keyPressEvent(self, e):
+        if e.key() in [QtCore.Qt.Key_Up, QtCore.Qt.Key_Down]:
+            self.list_widget.keyPressEvent(e)
+        else:
+            super(KeyQLineEdit, self).keyPressEvent(e)
+
+
+class KeyDialog(QtWidgets.QDialog):
+    def __init__(
+            self,
+            text="Enter object label",
+            parent=None,
+            labels=None,
+            sort_labels=True,
+            show_text_field=True,
+            completion="startswith",
+            fit_to_content=None,
+            flags=None,
+    ):
+        if fit_to_content is None:
+            fit_to_content = {"row": False, "column": True}
+        self._fit_to_content = fit_to_content
+
+        super(KeyDialog, self).__init__(parent)
+        self.edit = KeyQLineEdit()
+        self.edit.setPlaceholderText(text)
+        self.edit.setValidator(labelValidator())
+        self.edit.editingFinished.connect(self.postProcess)
+        if flags:
+            self.edit.textChanged.connect(self.updateFlags)
+
+        layout = QtWidgets.QVBoxLayout()
+        if show_text_field:
+            layout_edit = QtWidgets.QHBoxLayout()
+            layout_edit.addWidget(self.edit, 6)
+            layout.addLayout(layout_edit)
+        # buttons
+        self.buttonBox = bb = QtWidgets.QDialogButtonBox(
+            QtWidgets.QDialogButtonBox.Ok | QtWidgets.QDialogButtonBox.Cancel,
+            QtCore.Qt.Horizontal,
+            self,
+        )
+        bb.button(bb.Ok).setIcon(newIcon("done"))
+        bb.button(bb.Cancel).setIcon(newIcon("undo"))
+        bb.accepted.connect(self.validate)
+        bb.rejected.connect(self.reject)
+        layout.addWidget(bb)
+        # label_list
+        self.labelList = QtWidgets.QListWidget()
+        if self._fit_to_content["row"]:
+            self.labelList.setHorizontalScrollBarPolicy(
+                QtCore.Qt.ScrollBarAlwaysOff
+            )
+        if self._fit_to_content["column"]:
+            self.labelList.setVerticalScrollBarPolicy(
+                QtCore.Qt.ScrollBarAlwaysOff
+            )
+        self._sort_labels = sort_labels
+        if labels:
+            self.labelList.addItems(labels)
+        if self._sort_labels:
+            self.labelList.sortItems()
+        else:
+            self.labelList.setDragDropMode(
+                QtWidgets.QAbstractItemView.InternalMove
+            )
+        self.labelList.currentItemChanged.connect(self.labelSelected)
+        self.labelList.itemDoubleClicked.connect(self.labelDoubleClicked)
+        self.edit.setListWidget(self.labelList)
+        layout.addWidget(self.labelList)
+        # label_flags
+        if flags is None:
+            flags = {}
+        self._flags = flags
+        self.flagsLayout = QtWidgets.QVBoxLayout()
+        self.resetFlags()
+        layout.addItem(self.flagsLayout)
+        self.edit.textChanged.connect(self.updateFlags)
+        self.setLayout(layout)
+        # completion
+        completer = QtWidgets.QCompleter()
+        if not QT5 and completion != "startswith":
+            completion = "startswith"
+        if completion == "startswith":
+            completer.setCompletionMode(QtWidgets.QCompleter.InlineCompletion)
+            # Default settings.
+            # completer.setFilterMode(QtCore.Qt.MatchStartsWith)
+        elif completion == "contains":
+            completer.setCompletionMode(QtWidgets.QCompleter.PopupCompletion)
+            completer.setFilterMode(QtCore.Qt.MatchContains)
+        else:
+            raise ValueError("Unsupported completion: {}".format(completion))
+        completer.setModel(self.labelList.model())
+        self.edit.setCompleter(completer)
+
+    def addLabelHistory(self, label):
+        if self.labelList.findItems(label, QtCore.Qt.MatchExactly):
+            return
+        self.labelList.addItem(label)
+        if self._sort_labels:
+            self.labelList.sortItems()
+
+    def labelSelected(self, item):
+        self.edit.setText(item.text())
+
+    def validate(self):
+        text = self.edit.text()
+        if hasattr(text, "strip"):
+            text = text.strip()
+        else:
+            text = text.trimmed()
+        if text:
+            self.accept()
+
+    def labelDoubleClicked(self, item):
+        self.validate()
+
+    def postProcess(self):
+        text = self.edit.text()
+        if hasattr(text, "strip"):
+            text = text.strip()
+        else:
+            text = text.trimmed()
+        self.edit.setText(text)
+
+    def updateFlags(self, label_new):
+        # keep state of shared flags
+        flags_old = self.getFlags()
+
+        flags_new = {}
+        for pattern, keys in self._flags.items():
+            if re.match(pattern, label_new):
+                for key in keys:
+                    flags_new[key] = flags_old.get(key, False)
+        self.setFlags(flags_new)
+
+    def deleteFlags(self):
+        for i in reversed(range(self.flagsLayout.count())):
+            item = self.flagsLayout.itemAt(i).widget()
+            self.flagsLayout.removeWidget(item)
+            item.setParent(None)
+
+    def resetFlags(self, label=""):
+        flags = {}
+        for pattern, keys in self._flags.items():
+            if re.match(pattern, label):
+                for key in keys:
+                    flags[key] = False
+        self.setFlags(flags)
+
+    def setFlags(self, flags):
+        self.deleteFlags()
+        for key in flags:
+            item = QtWidgets.QCheckBox(key, self)
+            item.setChecked(flags[key])
+            self.flagsLayout.addWidget(item)
+            item.show()
+
+    def getFlags(self):
+        flags = {}
+        for i in range(self.flagsLayout.count()):
+            item = self.flagsLayout.itemAt(i).widget()
+            flags[item.text()] = item.isChecked()
+        return flags
+
+    def popUp(self, text=None, move=True, flags=None):
+        if self._fit_to_content["row"]:
+            self.labelList.setMinimumHeight(
+                self.labelList.sizeHintForRow(0) * self.labelList.count() + 2
+            )
+        if self._fit_to_content["column"]:
+            self.labelList.setMinimumWidth(
+                self.labelList.sizeHintForColumn(0) + 2
+            )
+        # if text is None, the previous label in self.edit is kept
+        if text is None:
+            text = self.edit.text()
+        if flags:
+            self.setFlags(flags)
+        else:
+            self.resetFlags(text)
+        self.edit.setText(text)
+        self.edit.setSelection(0, len(text))
+
+        items = self.labelList.findItems(text, QtCore.Qt.MatchFixedString)
+        if items:
+            if len(items) != 1:
+                self.labelList.setCurrentItem(items[0])
+            row = self.labelList.row(items[0])
+            self.edit.completer().setCurrentRow(row)
+        self.edit.setFocus(QtCore.Qt.PopupFocusReason)
+        if move:
+            self.move(QtGui.QCursor.pos())
+        if self.exec_():
+            return self.edit.text(), self.getFlags()
+        else:
+            return None, None

PPOCRLabel/libs/labelColor.py

+import PIL.Image
+import numpy as np
+
+
+def rgb2hsv(rgb):
+    # type: (np.ndarray) -> np.ndarray
+    """Convert rgb to hsv.
+
+    Parameters
+    ----------
+    rgb: numpy.ndarray, (H, W, 3), np.uint8
+        Input rgb image.
+
+    Returns
+    -------
+    hsv: numpy.ndarray, (H, W, 3), np.uint8
+        Output hsv image.
+
+    """
+    hsv = PIL.Image.fromarray(rgb, mode="RGB")
+    hsv = hsv.convert("HSV")
+    hsv = np.array(hsv)
+    return hsv
+
+
+def hsv2rgb(hsv):
+    # type: (np.ndarray) -> np.ndarray
+    """Convert hsv to rgb.
+
+    Parameters
+    ----------
+    hsv: numpy.ndarray, (H, W, 3), np.uint8
+        Input hsv image.
+
+    Returns
+    -------
+    rgb: numpy.ndarray, (H, W, 3), np.uint8
+        Output rgb image.
+
+    """
+    rgb = PIL.Image.fromarray(hsv, mode="HSV")
+    rgb = rgb.convert("RGB")
+    rgb = np.array(rgb)
+    return rgb
+
+
+def label_colormap(n_label=256, value=None):
+    """Label colormap.
+
+    Parameters
+    ----------
+    n_label: int
+        Number of labels (default: 256).
+    value: float or int
+        Value scale or value of label color in HSV space.
+
+    Returns
+    -------
+    cmap: numpy.ndarray, (N, 3), numpy.uint8
+        Label id to colormap.
+
+    """
+
+    def bitget(byteval, idx):
+        return (byteval & (1 << idx)) != 0
+
+    cmap = np.zeros((n_label, 3), dtype=np.uint8)
+    for i in range(0, n_label):
+        id = i
+        r, g, b = 0, 0, 0
+        for j in range(0, 8):
+            r = np.bitwise_or(r, (bitget(id, 0) << 7 - j))
+            g = np.bitwise_or(g, (bitget(id, 1) << 7 - j))
+            b = np.bitwise_or(b, (bitget(id, 2) << 7 - j))
+            id = id >> 3
+        cmap[i, 0] = r
+        cmap[i, 1] = g
+        cmap[i, 2] = b
+
+    if value is not None:
+        hsv = rgb2hsv(cmap.reshape(1, -1, 3))
+        if isinstance(value, float):
+            hsv[:, 1:, 2] = hsv[:, 1:, 2].astype(float) * value
+        else:
+            assert isinstance(value, int)
+            hsv[:, 1:, 2] = value
+        cmap = hsv2rgb(hsv).reshape(-1, 3)
+    return cmap

PPOCRLabel/libs/shape.py

@@ -46,12 +46,13 @@ class Shape(object):
     point_size = 8
     scale = 1.0
 
-    def __init__(self, label=None, line_color=None, difficult=False, paintLabel=False):
+    def __init__(self, label=None, line_color=None, difficult=False, key_cls="None", paintLabel=False):
         self.label = label
         self.points = []
         self.fill = False
         self.selected = False
         self.difficult = difficult
+        self.key_cls = key_cls
         self.paintLabel = paintLabel
         self.locked = False
         self.direction = 0
@@ -224,6 +225,7 @@ class Shape(object):
         if self.fill_color != Shape.fill_color:
             shape.fill_color = self.fill_color
         shape.difficult = self.difficult
+        shape.key_cls = self.key_cls
         return shape
 
     def __len__(self):

PPOCRLabel/libs/unique_label_qlist_widget.py

+# -*- encoding: utf-8 -*-
+
+from PyQt5.QtCore import Qt
+from PyQt5 import QtWidgets
+
+
+class EscapableQListWidget(QtWidgets.QListWidget):
+    def keyPressEvent(self, event):
+        super(EscapableQListWidget, self).keyPressEvent(event)
+        if event.key() == Qt.Key_Escape:
+            self.clearSelection()
+
+
+class UniqueLabelQListWidget(EscapableQListWidget):
+    def mousePressEvent(self, event):
+        super(UniqueLabelQListWidget, self).mousePressEvent(event)
+        if not self.indexAt(event.pos()).isValid():
+            self.clearSelection()
+
+    def findItemsByLabel(self, label, get_row=False):
+        items = []
+        for row in range(self.count()):
+            item = self.item(row)
+            if item.data(Qt.UserRole) == label:
+                items.append(item)
+                if get_row:
+                    return row
+        return items
+
+    def createItemFromLabel(self, label):
+        item = QtWidgets.QListWidgetItem()
+        item.setData(Qt.UserRole, label)
+        return item
+
+    def setItemLabel(self, item, label, color=None):
+        qlabel = QtWidgets.QLabel()
+        if color is None:
+            qlabel.setText(f"{label}")
+        else:
+            qlabel.setText('<font color="#{:02x}{:02x}{:02x}">●</font> {} '.format(*color, label))
+        qlabel.setAlignment(Qt.AlignBottom)
+
+        item.setSizeHint(qlabel.sizeHint())
+
+        self.setItemWidget(item, qlabel)

PPOCRLabel/libs/utils.py

@@ -10,30 +10,26 @@
 # SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
 # CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 # THE SOFTWARE.
-from math import sqrt
-from libs.ustr import ustr
 import hashlib
+import os
 import re
 import sys
+from math import sqrt
+
 import cv2
 import numpy as np
-import os
+from PyQt5.QtCore import QRegExp, QT_VERSION_STR
+from PyQt5.QtGui import QIcon, QRegExpValidator, QColor
+from PyQt5.QtWidgets import QPushButton, QAction, QMenu
+from libs.ustr import ustr
 
-__dir__ = os.path.dirname(os.path.abspath(__file__)) # 获取本程序文件路径
+__dir__ = os.path.dirname(os.path.abspath(__file__))  # 获取本程序文件路径
 __iconpath__ = os.path.abspath(os.path.join(__dir__, '../resources/icons'))
 
-try:
-    from PyQt5.QtGui import *
-    from PyQt5.QtCore import *
-    from PyQt5.QtWidgets import *
-except ImportError:
-    from PyQt4.QtGui import *
-    from PyQt4.QtCore import *
-
 
 def newIcon(icon, iconSize=None):
     if iconSize is not None:
-        return QIcon(QIcon(__iconpath__ + "/" + icon + ".png").pixmap(iconSize,iconSize))
+        return QIcon(QIcon(__iconpath__ + "/" + icon + ".png").pixmap(iconSize, iconSize))
     else:
         return QIcon(__iconpath__ + "/" + icon + ".png")
 
@@ -105,24 +101,25 @@ def generateColorByText(text):
     s = ustr(text)
     hashCode = int(hashlib.sha256(s.encode('utf-8')).hexdigest(), 16)
     r = int((hashCode / 255) % 255)
-    g = int((hashCode / 65025)  % 255)
-    b = int((hashCode / 16581375)  % 255)
+    g = int((hashCode / 65025) % 255)
+    b = int((hashCode / 16581375) % 255)
     return QColor(r, g, b, 100)
 
+
 def have_qstring():
     '''p3/qt5 get rid of QString wrapper as py3 has native unicode str type'''
     return not (sys.version_info.major >= 3 or QT_VERSION_STR.startswith('5.'))
 
-def util_qt_strlistclass():
-    return QStringList if have_qstring() else list
 
-def natural_sort(list, key=lambda s:s):
+def natural_sort(list, key=lambda s: s):
     """
     Sort the list into natural alphanumeric order.
     """
+
     def get_alphanum_key_func(key):
         convert = lambda text: int(text) if text.isdigit() else text
         return lambda s: [convert(c) for c in re.split('([0-9]+)', key(s))]
+
     sort_key = get_alphanum_key_func(key)
     list.sort(key=sort_key)
 
@@ -133,8 +130,8 @@ def get_rotate_crop_image(img, points):
     d = 0.0
     for index in range(-1, 3):
         d += -0.5 * (points[index + 1][1] + points[index][1]) * (
-                    points[index + 1][0] - points[index][0])
-    if d < 0: # counterclockwise
+                points[index + 1][0] - points[index][0])
+    if d < 0:  # counterclockwise
         tmp = np.array(points)
         points[1], points[3] = tmp[3], tmp[1]
 
@@ -163,10 +160,11 @@ def get_rotate_crop_image(img, points):
     except Exception as e:
         print(e)
 
+
 def stepsInfo(lang='en'):
     if lang == 'ch':
         msg = "1. 安装与运行：使用上述命令安装与运行程序。\n" \
-              "2. 打开文件夹：在菜单栏点击 “文件” - 打开目录 选择待标记图片的文件夹.\n"\
+              "2. 打开文件夹：在菜单栏点击 “文件” - 打开目录 选择待标记图片的文件夹.\n" \
               "3. 自动标注：点击 ”自动标注“，使用PPOCR超轻量模型对图片文件名前图片状态为 “X” 的图片进行自动标注。\n" \
               "4. 手动标注：点击 “矩形标注”（推荐直接在英文模式下点击键盘中的 “W”)，用户可对当前图片中模型未检出的部分进行手动" \
               "绘制标记框。点击键盘P，则使用四点标注模式（或点击“编辑” - “四点标注”），用户依次点击4个点后，双击左键表示标注完成。\n" \
@@ -181,25 +179,26 @@ def stepsInfo(lang='en'):
 
     else:
         msg = "1. Build and launch using the instructions above.\n" \
-              "2. Click 'Open Dir' in Menu/File to select the folder of the picture.\n"\
-              "3. Click 'Auto recognition', use PPOCR model to automatically annotate images which marked with 'X' before the file name."\
-              "4. Create Box:\n"\
-                   "4.1 Click 'Create RectBox' or press 'W' in English keyboard mode to draw a new rectangle detection box. Click and release left mouse to select a region to annotate the text area.\n"\
-                   "4.2 Press 'P' to enter four-point labeling mode which enables you to create any four-point shape by clicking four points with the left mouse button in succession and DOUBLE CLICK the left mouse as the signal of labeling completion.\n"\
-              "5. After the marking frame is drawn, the user clicks 'OK', and the detection frame will be pre-assigned a TEMPORARY label.\n"\
-              "6. Click re-Recognition, model will rewrite ALL recognition results in ALL detection box.\n"\
-              "7. Double click the result in 'recognition result' list to manually change inaccurate recognition results.\n"\
-              "8. Click 'Save', the image status will switch to '√',then the program automatically jump to the next.\n"\
-              "9. Click 'Delete Image' and the image will be deleted to the recycle bin.\n"\
-              "10. Labeling result: After closing the application or switching the file path, the manually saved label will be stored in *Label.txt* under the opened picture folder.\n"\
-              "    Click PaddleOCR-Save Recognition Results in the menu bar, the recognition training data of such pictures will be saved in the *crop_img* folder, and the recognition label will be saved in *rec_gt.txt*.\n" 
+              "2. Click 'Open Dir' in Menu/File to select the folder of the picture.\n" \
+              "3. Click 'Auto recognition', use PPOCR model to automatically annotate images which marked with 'X' before the file name." \
+              "4. Create Box:\n" \
+              "4.1 Click 'Create RectBox' or press 'W' in English keyboard mode to draw a new rectangle detection box. Click and release left mouse to select a region to annotate the text area.\n" \
+              "4.2 Press 'P' to enter four-point labeling mode which enables you to create any four-point shape by clicking four points with the left mouse button in succession and DOUBLE CLICK the left mouse as the signal of labeling completion.\n" \
+              "5. After the marking frame is drawn, the user clicks 'OK', and the detection frame will be pre-assigned a TEMPORARY label.\n" \
+              "6. Click re-Recognition, model will rewrite ALL recognition results in ALL detection box.\n" \
+              "7. Double click the result in 'recognition result' list to manually change inaccurate recognition results.\n" \
+              "8. Click 'Save', the image status will switch to '√',then the program automatically jump to the next.\n" \
+              "9. Click 'Delete Image' and the image will be deleted to the recycle bin.\n" \
+              "10. Labeling result: After closing the application or switching the file path, the manually saved label will be stored in *Label.txt* under the opened picture folder.\n" \
+              "    Click PaddleOCR-Save Recognition Results in the menu bar, the recognition training data of such pictures will be saved in the *crop_img* folder, and the recognition label will be saved in *rec_gt.txt*.\n"
 
     return msg
 
+
 def keysInfo(lang='en'):
     if lang == 'ch':
         msg = "快捷键\t\t\t说明\n" \
-              "———————————————————————\n"\
+              "———————————————————————\n" \
               "Ctrl + shift + R\t\t对当前图片的所有标记重新识别\n" \
               "W\t\t\t新建矩形框\n" \
               "Q\t\t\t新建四点框\n" \
@@ -223,17 +222,17 @@ def keysInfo(lang='en'):
               "———————————————————————\n" \
               "Ctrl + shift + R\t\tRe-recognize all the labels\n" \
               "\t\t\tof the current image\n" \
-              "\n"\
+              "\n" \
               "W\t\t\tCreate a rect box\n" \
               "Q\t\t\tCreate a four-points box\n" \
               "Ctrl + E\t\tEdit label of the selected box\n" \
               "Ctrl + R\t\tRe-recognize the selected box\n" \
               "Ctrl + C\t\tCopy and paste the selected\n" \
               "\t\t\tbox\n" \
-              "\n"\
+              "\n" \
               "Ctrl + Left Mouse\tMulti select the label\n" \
               "Button\t\t\tbox\n" \
-              "\n"\
+              "\n" \
               "Backspace\t\tDelete the selected box\n" \
               "Ctrl + V\t\tCheck image\n" \
               "Ctrl + Shift + d\tDelete image\n" \
@@ -245,4 +244,4 @@ def keysInfo(lang='en'):
               "———————————————————————\n" \
               "Notice:For Mac users, use the 'Command' key instead of the 'Ctrl' key"
 
-    return msg
\ No newline at end of file
+    return msg

PPOCRLabel/resources/strings/strings-en.properties

@@ -106,4 +106,7 @@ undo=Undo
 undoLastPoint=Undo Last Point
 autoSaveMode=Auto Export Label Mode
 lockBox=Lock selected box/Unlock all box
-lockBoxDetail=Lock selected box/Unlock all box
\ No newline at end of file
+lockBoxDetail=Lock selected box/Unlock all box
+keyListTitle=Key List
+keyDialogTip=Enter object label
+keyChange=Change Box Key

PPOCRLabel/resources/strings/strings-zh-CN.properties

@@ -107,3 +107,6 @@ undoLastPoint=撤销上个点
 autoSaveMode=自动导出标记结果
 lockBox=锁定框/解除锁定框
 lockBoxDetail=若当前没有框处于锁定状态则锁定选中的框，若存在锁定框则解除所有锁定框的锁定状态
+keyListTitle=关键词列表
+keyDialogTip=请输入类型名称
+keyChange=更改Box关键字类别
\ No newline at end of file