Image Registration
Aligning two or more images of the same scene taken at different times, viewpoints, or by different sensors.
技术细节
In digital imaging, image registration plays a critical role in how images are stored, processed, and displayed. Modern image pipelines handle aligning through standardized APIs (Canvas, WebGL, ImageBitmap) that operate directly on GPU memory for performance. Understanding image registration is essential for optimizing web delivery, where image payload typically accounts for 40-60% of total page weight. Browser-based tools can manipulate aligning entirely client-side using the Canvas API without server round-trips.
示例
```javascript
// Image Registration: processing with Canvas API
const canvas = document.createElement('canvas');
const ctx = canvas.getContext('2d');
ctx.drawImage(sourceImage, 0, 0);
const imageData = ctx.getImageData(0, 0, canvas.width, canvas.height);
// Process pixels in imageData.data (RGBA array)
```