Convolution Kernel Lab
Load Image
Custom
Identity
Sharpen
Box Blur
Gaussian Blur
Edge (Horizontal)
Edge (Vertical)
Sobel X
Sobel Y
Emboss
Outline
Unsharp Mask
Apply Kernel
Reset
Divisor
Bias
Input
Output
Edit the 3x3 kernel matrix above. Each value multiplies the corresponding pixel neighborhood. Click Apply to convolve. Try the presets for classic image processing effects.