# Transformation filter reference
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The ECS architecture supports a comprehensive set of image transformation filters using a simplified syntax. The following table provides the complete filter reference:


| Filter Name | Filter Syntax | Notes | 
| --- | --- | --- | 
|   **Blur**   |   `blur=30`   |  Integer from 0.3 to 1000  | 
|   **Convolve**   |   `convolve.width=3` `convolve.height=3` `convolve.kernel=[1,0,-1,0,0,0,-1,0,1]`   |  Requires 3 parameters: width, height, kernel  | 
|   **Extract**   |   `extract=[10,10,200,200]`   |  Array of 4 non-negative integers  | 
|   **Flatten**   |   `flatten=aliceblue` `flatten=[0,0,255,1]`   |  Accepts color names or RGBA tuples  | 
|   **Flip**   |   `flip=true`   |  Boolean  | 
|   **Flop**   |   `flop=true`   |  Boolean  | 
|   **Format**   |   `format=webp`   |  Accepts: jpg, jpeg, png, tiff, webp, gif, avif  | 
|   **Greyscale**   |   `greyscale=true`   |  Boolean  | 
|   **Normalize**   |   `normalize=true`   |  Boolean  | 
|   **Quality**   |   `quality=0.5`   |  Integer from 0 to 1  | 
|   **Resize**   |   `resize.width=200` `resize.ratio=0.5` `resize.fit=contain` `resize.withoutEnlargement=true` `resize.background=blue`   |  Must specify: height, width, or ratio  | 
|   **Rotate**   |   `rotate=90`   |  Integer  | 
|   **Sharpen**   |   `sharpen=true` or `sharpen=sigma=5` `sharpen.m1=2` `sharpen.m2=1` `sharpen.x1=2` `sharpen.y2=20` `sharpen.y3=20`   |  Accepts either boolean to perform a fast mild sharpen, or additional parameters for a slower but more accurate sharpen. See [Sharp docs](https://sharp.pixelplumbing.com/api-operation/#sharpen) for more information.  | 
|   **Smart Crop**   |   `smartCrop=true` or `smartCrop.index=1` `smartCrop.padding=200`   |  Accepts either boolean or index \$1 padding parameters. Boolean will automatically perform cropping.  | 
|   **Strip ICC**   |   `stripIcc=true`   |  Strip ICC and enforces sRGB color space  | 
|   **Strip EXIF**   |   `stripExif=true`   |  Removes image metadata  | 
|   **Tint**   |   `tint=aliceblue` `tint=[0,0,255,1]`   |  Accepts color names or RGBA tuples  | 
|   **Watermark**   |   `watermark=https://example.com/overlayImage.png,[15,15,0.1,0.4,0.4]`   |  Expects a format of: [watermarkURL, [x, y, alpha, widthRatio, heightRatio]] Note: For security reasons, the origin the watermark image is hosted at must be configured as an origin within DIT.  |