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提交 6898572c 编写于 作者: G Gloria
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Update docs against 10801 

Signed-off-by: wusongqing<wusongqing@huawei.com>
上级 d02dd0eb
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Showing with 25 addition and 25 deletion
en/application-dev/reference/apis/js-apis-image.md
浏览文件 @ 6898572c
......@@ -37,7 +37,7 @@ Creates a **PixelMap** object with the default BGRA_8888 format and pixel proper
**Example**
```js
const color = new ArrayBuffer(96);
const color = new ArrayBuffer(96); // 96 is the size of the pixel map buffer to create. The value is calculated as follows: height x width x 4.
let bufferArr = new Uint8Array(color);
let opts = { editable: true, pixelFormat: 3, size: { height: 4, width: 6 } }
image.createPixelMap(color, opts).then((pixelmap) => {
......@@ -66,7 +66,7 @@ Creates a **PixelMap** object with the default BGRA_8888 format and pixel proper
**Example**
```js
const color = new ArrayBuffer(96);
const color = new ArrayBuffer(96); // 96 is the size of the pixel map buffer to create. The value is calculated as follows: height x width x 4.
let bufferArr = new Uint8Array(color);
let opts = { editable: true, pixelFormat: 3, size: { height: 4, width: 6 } }
image.createPixelMap(color, opts, (error, pixelmap) => {
......@@ -113,7 +113,7 @@ Reads data of this pixel map and writes the data to an **ArrayBuffer**. This API
**Example**
```js
const readBuffer = new ArrayBuffer(96);
const readBuffer = new ArrayBuffer(96); // 96 is the size of the pixel map buffer to create. The value is calculated as follows: height x width x 4.
pixelmap.readPixelsToBuffer(readBuffer).then(() => {
console.log('Succeeded in reading image pixel data.'); // Called if the condition is met.
}).catch(error => {
......@@ -139,7 +139,7 @@ Reads data of this pixel map and writes the data to an **ArrayBuffer**. This API
**Example**
```js
const readBuffer = new ArrayBuffer(96);
const readBuffer = new ArrayBuffer(96); // 96 is the size of the pixel map buffer to create. The value is calculated as follows: height x width x 4.
pixelmap.readPixelsToBuffer(readBuffer, (err, res) => {
if(err) {
console.log('Failed to read image pixel data.'); // Called if no condition is met.
......@@ -203,7 +203,7 @@ Reads image pixel map data in an area. This API uses an asynchronous callback to
**Example**
```js
const color = new ArrayBuffer(96);
const color = new ArrayBuffer(96); // 96 is the size of the pixel map buffer to create. The value is calculated as follows: height x width x 4.
let bufferArr = new Uint8Array(color);
let opts = { editable: true, pixelFormat: 3, size: { height: 4, width: 6 } }
image.createPixelMap(color, opts, (err, pixelmap) => {
......@@ -244,7 +244,7 @@ Writes image pixel map data to an area. This API uses a promise to return the op
**Example**
```js
const color = new ArrayBuffer(96);
const color = new ArrayBuffer(96); // 96 is the size of the pixel map buffer to create. The value is calculated as follows: height x width x 4.
let bufferArr = new Uint8Array(color);
let opts = { editable: true, pixelFormat: 3, size: { height: 4, width: 6 } }
image.createPixelMap(color, opts)
......@@ -329,7 +329,7 @@ Reads image data in an **ArrayBuffer** and writes the data to a **PixelMap** obj
**Example**
```js
const color = new ArrayBuffer(96);
const color = new ArrayBuffer(96); // 96 is the size of the pixel map buffer to create. The value is calculated as follows: height x width x 4.
let bufferArr = new Uint8Array(color);
for (var i = 0; i < bufferArr.length; i++) {
bufferArr[i] = i + 1;
......@@ -359,7 +359,7 @@ Reads image data in an **ArrayBuffer** and writes the data to a **PixelMap** obj
**Example**
```js
const color = new ArrayBuffer(96);
const color = new ArrayBuffer(96); // 96 is the size of the pixel map buffer to create. The value is calculated as follows: height x width x 4.
let bufferArr = new Uint8Array(color);
for (var i = 0; i < bufferArr.length; i++) {
bufferArr[i] = i + 1;
......@@ -391,7 +391,7 @@ Obtains pixel map information of this image. This API uses a promise to return t
**Example**
```js
const color = new ArrayBuffer(96);
const color = new ArrayBuffer(96); // 96 is the size of the pixel map buffer to create. The value is calculated as follows: height x width x 4.
let opts = { editable: true, pixelFormat: 2, size: { height: 6, width: 8 } }
image.createPixelMap(color, opts).then(pixelmap => {
if (pixelmap == undefined) {
......@@ -425,7 +425,7 @@ Obtains pixel map information of this image. This API uses an asynchronous callb
**Example**
```js
const color = new ArrayBuffer(96);
const color = new ArrayBuffer(96); // 96 is the size of the pixel map buffer to create. The value is calculated as follows: height x width x 4.
let opts = { editable: true, pixelFormat: 3, size: { height: 4, width: 6 } }
image.createPixelMap(color, opts, (err, pixelmap) => {
if (pixelmap == undefined) {
......@@ -459,7 +459,7 @@ Obtains the number of bytes per row of this image pixel map.
**Example**
```js
const color = new ArrayBuffer(96);
const color = new ArrayBuffer(96); // 96 is the size of the pixel map buffer to create. The value is calculated as follows: height x width x 4.
let bufferArr = new Uint8Array(color);
let opts = { editable: true, pixelFormat: 3, size: { height: 4, width: 6 } }
image.createPixelMap(color, opts, (err,pixelmap) => {
......@@ -931,7 +931,7 @@ Creates an **ImageSource** instance based on the URI.
| Name| Type | Mandatory| Description |
| ------ | ------ | ---- | ---------------------------------- |
| uri | string | Yes | Image path. Currently, only the application sandbox path is supported.<br>Currently, the following raw formats are supported: .jpg, .png, .gif, .bmp, and .webp.|
| uri | string | Yes | Image path. Currently, only the application sandbox path is supported.<br>Currently, the following formats are supported: JPG, PNG, GIF, BMP, Webp, and RAW.|
**Return value**
......@@ -958,7 +958,7 @@ Creates an **ImageSource** instance based on the URI.
| Name | Type | Mandatory| Description |
| ------- | ------------------------------- | ---- | ----------------------------------- |
| uri | string | Yes | Image path. Currently, only the application sandbox path is supported.<br>Currently, the following raw formats are supported: .jpg, .png, .gif, .bmp, and .webp.|
| uri | string | Yes | Image path. Currently, only the application sandbox path is supported.<br>Currently, the following formats are supported: JPG, PNG, GIF, BMP, Webp, and RAW.|
| options | [SourceOptions](#sourceoptions9) | Yes | Image properties, including the image index and default property value.|
**Return value**
......@@ -1045,7 +1045,7 @@ Creates an **ImageSource** instance based on the buffers.
**Example**
```js
const buf = new ArrayBuffer(96);
const buf = new ArrayBuffer(96); // 96 is the size of the pixel map buffer to create. The value is calculated as follows: height x width x 4.
const imageSourceApi = image.createImageSource(buf);
```
......@@ -1100,7 +1100,7 @@ Creates an **ImageSource** instance in incremental mode based on the buffers.
**Example**
```js
const buf = new ArrayBuffer(96);
const buf = new ArrayBuffer(96); // 96 is the size of the pixel map buffer to create. The value is calculated as follows: height x width x 4.
const imageSourceIncrementalSApi = image.createIncrementalSource(buf);
```
......@@ -1128,7 +1128,7 @@ Creates an **ImageSource** instance in incremental mode based on the buffers.
**Example**
```js
const buf = new ArrayBuffer(96);
const buf = new ArrayBuffer(96); // 96 is the size of the pixel map buffer to create. The value is calculated as follows: height x width x 4.
const imageSourceIncrementalSApi = image.createIncrementalSource(buf);
```
......@@ -1663,7 +1663,7 @@ Packs an image. This API uses an asynchronous callback to return the result.
**Example**
```js
const color = new ArrayBuffer(96);
const color = new ArrayBuffer(96); // 96 is the size of the pixel map buffer to create. The value is calculated as follows: height x width x 4.
let bufferArr = new Uint8Array(color);
let opts = { editable: true, pixelFormat: 3, size: { height: 4, width: 6 } }
image.createPixelMap(color, opts).then((pixelmap) => {
......@@ -1698,7 +1698,7 @@ Packs an image. This API uses a promise to return the result.
**Example**
```js
const color = new ArrayBuffer(96);
const color = new ArrayBuffer(96); // 96 is the size of the pixel map buffer to create. The value is calculated as follows: height x width x 4.
let bufferArr = new Uint8Array(color);
let opts = { editable: true, pixelFormat: 3, size: { height: 4, width: 6 } }
image.createPixelMap(color, opts).then((pixelmap) => {
......@@ -1772,7 +1772,7 @@ Creates an **ImageReceiver** instance by specifying the image width, height, for
| -------- | ------ | ---- | ---------------------- |
| width | number | Yes | Default image width. |
| height | number | Yes | Default image height. |
| format | number | Yes | Image format, which is a constant of [ImageFormat](#imageformat9). |
| format | number | Yes | Image format, which is a constant of [ImageFormat](#imageformat9). (Currently, the value of this parameter is agreed between the user and camera. In the future, there may be other application scenarios. The receiver is used only for transfer. Currently, only **ImageFormat:JPEG** is supported.) |
| capacity | number | Yes | Maximum number of images that can be accessed at the same time.|
**Return value**
......@@ -1784,7 +1784,7 @@ Creates an **ImageReceiver** instance by specifying the image width, height, for
**Example**
```js
var receiver = image.createImageReceiver(8192, 8, 4, 8);
var receiver = image.createImageReceiver(8192, 8, 2000, 8);
```
## ImageReceiver<sup>9+</sup>
......@@ -2049,7 +2049,7 @@ var creator = image.createImageCreator(8192, 8, 4, 8);
## ImageCreator<sup>9+</sup>
Requests an image native data area, and provides APIs for applications to compile native image data.
Provides APIs for applications to request an image native data area and compile native image data.
Before calling any APIs in **ImageCreator**, you must create an **ImageCreator** instance.
### Attributes
......@@ -2082,7 +2082,7 @@ creator.dequeueImage((err, img) => {
if (err) {
console.info('dequeueImage succeeded.');
}
console.info('dequeueImage failed.'));
console.info('dequeueImage failed.');
});
```
......@@ -2498,8 +2498,8 @@ Defines the option for image packing.
| Name | Type | Readable| Writable| Description |
| ------- | ------ | ---- | ---- | --------------------------------------------------- |
| format | string | Yes | Yes | Format of the packed image.<br>Currently, the following raw formats are supported: .jpg, .png, .gif, .bmp, and .webp.|
| quality | number | Yes | Yes | Quality of the output image during JPEG encoding. The value ranges from 1 to 100.|
| format | string | Yes | Yes | Format of the packed image.<br>Currently, the following formats are supported: JPG, PNG, GIF, BMP, Webp, and RAW.|
| quality | number | Yes | Yes | Quality of the output image in JPEG encoding. The value ranges from 1 to 100.|
| bufferSize<sup>9+</sup> | number | Yes | Yes | Buffer size, which is used to set the image size. The default value is 10 MB.|
## GetImagePropertyOptions<sup>7+</sup>
......@@ -2531,7 +2531,7 @@ Describes the exchangeable image file format (EXIF) information of an image.
| GPS_LONGITUDE_REF | "GPSLongitudeRef" | Longitude reference, for example, W or E. |
| DATE_TIME_ORIGINAL<sup>9+</sup> | "DateTimeOriginal" | Shooting time, for example, 2022:09:06 15:48:00. |
| EXPOSURE_TIME<sup>9+</sup> | "ExposureTime" | Exposure time, for example, 1/33 sec.|
| SCENE_TYPE<sup>9+</sup> | "SceneType" | Shooting scene mode, for example, portrait, scenery, motion, and night sight. |
| SCENE_TYPE<sup>9+</sup> | "SceneType" | Shooting scene type, for example, portrait, scenery, motion, and night. |
| ISO_SPEED_RATINGS<sup>9+</sup> | "ISOSpeedRatings" | ISO sensitivity or ISO speed, for example, 400. |
| F_NUMBER<sup>9+</sup> | "FNumber" | Aperture, for example, f/1.8. |
......
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