Fotoxx is a free open source Linux program for editing digital photos. The goal of fotoxx is to meet most photo editing needs while remaining easy to use.

Short Description
Navigate images using a pageable thumbnail window. Change brightness and contrast, change color intensity, saturation, depth, make panoramas and HDR images, fix red-eyes, trim, rescale, rotate, warp, fix perspective, sharpen, blur, remove noise, add artistic effects. Edit within mouse-selected area. Import RAW files, edit 16 bits/color. Add tags to images, search by tags, dates, and star-ratings.

Long Description:

  • Navigate a large image collection using a pagable thumbnail window.
  • Click a button to make the thumbnails larger or smaller. 
  • Click a thumbnail to view full-size or edit in a new window. 
  • Import RAW image files from a digital camera. 
  • Edit and save images in 8 or 16 bits/color (jpeg or tiff).
  • Brightness can be adjusted independently for brighter and darker image areas. 
  • The brightness distribution can be "flattened", often a fast and easy method to improve overall balance and detail. 
  • Trim an image (cut away unwanted margins).
  • Rotate an image (level a tilted image or turn in 90 degree steps). 
  • Rescale an image (change pixel dimensions).
  • Remove red-eyes, usually with 1-click.
  • Correct perspective problems, e.g. slanted or curved buildings.
  • Stretch or warp a selected image area to produce strange effects. 
  • Sharpen an image (reduce blur or fuzziness). 
  • Blur an image (soften sharp edges, blend out skin spots). 
  • Reduce noise (speckles) in a low-light photo. 
  • Reduce color depth (reduce no. of colors, posterize). 
  • Vary color intensity from gray scale to intensified (saturated) color.
  • Transform a photo into a simulated drawing, embossing, or painting.
  • Editing can also be done within an area outlined with the mouse, with smooth blending of the edges. 
  • Two or more images can be joined to make a panorama image. 
  • Combine an underexposed and overexposed image to make an HDR image.
  • The panorama and HDR functions are easy to use and tolerate the misalignments of a hand-held camera.
  • Add tags (keywords), dates, and star-ratings (quality, importance) to images.
  • Search for images having desired tags/dates/ratings and display hits in a thumbnail navigation window. 
  • Select random images from thumbnail indexes, edit sequence, burn to CD or DVD (uses Brasero).
  • Add images to a layout, move around and resize using the mouse, add text in any font, print (sister application printoxx).
  • The GUI interface is available in English, French, German, Greek, Spanish, Galacian, Chinese (PRC). 
  • User Guide available in English, French, Galacian.

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Fotoxx review by Softpedia

 

Screenshot  - navigation and browser