photo-plugins offers free plugins for photo processing.
These plugins are photo retouching oriented and can help with various tasks such as sharpening, converting to black and white, bringing out detail, controlling saturation, applying gradient blurs, correcting barrel and pincushion distortion etc.
B/W Conversion
Selective Saturation
Local Contrast Enhancement
High Pass Sharpening
Soft Focus
Lens Correction
Contrast Mask
Gradient Blur
ColorLab Tiff Lab bug correction
Downloads