User:Brother-John/Photivo

General
Photivo is an open source photo processor.

Internals
The raw file decoding uses an adapted version of dcraw.

The internal processing is based on a 16-bit integer representation of linear RGB or LAB color space.

History
Photivo is a fork of dlRaw.

Objective
The goal is to have the complete photo processing workflow in one program. This includes:
 * opening of several photo file types (including raw)
 * basic corrections as exposure or saturation adjustments
 * local and global contrast adjustmentsgradient sharpen
 * sharpen filters: highpass sharpen, unsharp masking, gradient sharpen, inverse diffusion sharpen, Wiener filter
 * denoise filters (seperated by luminance and color): Bilateral filter, GreyCStoration, pyramid denoising, wavelet denoising
 * correction of lens weaknesses like distortion, vignetting or chromatic aberrations.
 * geometric corrections for rotating, tilting or cropping the image

Photivo also ships filters for simulating creative looks like:
 * Black and white photography
 * Duotone
 * Cross processing
 * Fake HDR look
 * Orton imagery
 * Comic style
 * Fake tilt-shift/Miniature faking
 * Seam carving

Tutorials
Links to http://photivo.org/photivo/tutorials und MeetTheGimp