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How to scale and crop images on canvas in JavaScript

Canvas and WebGLcanvas, crop, drawImage, js graphics, scale

Canvas API image cropping techniques using drawImage method with defined source rectangles. Dynamic cropping maintains aspect ratios. User interaction enabled through mouse events for selection-based cropping. Consider image formats like PNG for transparency and test across devices for consistent results.

Canvas and WebGL

How to load and draw an image on canvas in JavaScript

Canvas and WebGLcanvas, drawImage, image, js graphics

Canvas drawImage method supports placement, cropping, and scaling with up to nine arguments. Pixel-level effects use getImageData and putImageData. Transformations include rotation, translation, flipping, and patterns with createPattern for tiled fills. Essential for dynamic image rendering and graphics.