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44 lines
1.3 KiB
Markdown
44 lines
1.3 KiB
Markdown
# extractstamp
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Extract stamps from images using OpenCV.js.
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##
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Preview Site: https://xxss0903.github.io/extractstamp/index.html
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## Features
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- Extract red stamps from images
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- Support for circular stamp detection and extraction
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- Ability to set the color of the extracted stamp
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## Usage Instructions
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1. Clone or download this repository to your local machine.
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2. Ensure your project includes the following files:
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- extractStamp.js
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- opencv.js (can be included via CDN, e.g., https://docs.opencv.org/4.x/opencv.js)
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3. Click the "Choose File" button to select an image file containing a stamp.
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4. The system will automatically process the image, extract the red stamp, and display the results.
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## Main Function Description
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- `initOpenCV(callback)`: Initialize OpenCV.js
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- `extractStampWithFile(file, setColor, isCircle)`: Extract stamp from a file
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- `file`: Image file
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- `setColor`: Set the color of the extracted stamp (default is red "#ff0000")
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- `isCircle`: Whether to extract only circular stamps (default is true)
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## Example
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```js
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extractStampWithFile(file, '#ff0000', true).then(dstImgList => {
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console.log('Red stamp extraction successful', dstImgList);
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}).catch(error => {
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console.error('Error processing image:', error);
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});
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```
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