What is Aspect Ratio?

Aspect Ratio — Image Width-to-Height Proportions

Aspect ratio is the proportional relationship between an image's width and height, expressed as two numbers separated by a colon. Common ratios include 16:9 (widescreen), 4:3 (classic), and 1:1 (square).

기술 세부사항

Aspect ratio is calculated by dividing width and height by their greatest common divisor. Changing an image's aspect ratio without cropping requires adding padding or distorting the content.

예시

```javascript
// Crop image to specific region
const canvas = document.createElement('canvas');
canvas.width = cropWidth;
canvas.height = cropHeight;
const ctx = canvas.getContext('2d');
ctx.drawImage(
  img,
  cropX, cropY, cropWidth, cropHeight,  // source rect
  0, 0, cropWidth, cropHeight            // dest rect
);
```

관련 용어

Metadata Rasterization Resolution DPI Color Space Alpha Channel Lossy Compression Lossless Compression EXIF Color Profile Bit Depth Vector Graphics Raster Graphics Chroma Subsampling HDR WebP AVIF Sprite Sheet Thumbnail Crop Resize Image Optimization Image Histogram Noise Reduction (Image) Panorama Stitching Image Segmentation Object Detection Feature Matching Image Interpolation Dithering (Image) Alpha Compositing Image Pyramid Mipmap Texture Atlas Image Registration Morphological Operations IPTC ICC Profile Gamut Mapping Tone Mapping Chromatic Aberration Vignetting XMP Color Grading (Image) Focus Stacking Content-Aware Fill Batch Resize Compression Ratio Aspect Ratio (CSS) Contrast Ratio Golden Ratio Convolution Canvas Compression Artifact DPI/PPI Gamma Histogram

Categories

Aspect Ratio

기술 세부사항

예시

관련 포맷

관련 도구

관련 용어