RIOT 0.5.2

Published October 9, 2013 by Download Software

Radical Image Optimization Tool (RIOT for short) is a free image optimizer that will let you to visually adjust compression parameters while keeping minimum filesize.

It uses with a side by side (dual view) or single view interface to compare the original with the optimized image in real time and instantly see the resulting file size.

The image optimizer is lightweight, fast and simple to use, yet powerful for advanced users. You will be able to control compression, number of colors, metadata settings and much more, and select image format (JPEG, GIF or PNG) for your output file.

RIOT can be integrated as plug-in in well known programs like The GIMP, IrfanView and XnView

Features:

open many image types including rare/scientific types
save and optimize JPEG, GIF and PNG with a simple, clean user interface
works in dual view: (original – optimized image) or single view (optimized image).
Automatic preview of resulting image
in-place compare function (alternativelly display the original image over the optimized image to notice small pixel changes)
compress files to desired filesize threshold
fast processing (all is done in memory);
see instant results including resulting filesize
batch support (process multiple files at once)
transparency handling options
decide if you want to keep metadata (comments, IPTC, Adobe XMP, EXIF profiles, ICC profiles).
Unsupported metadata is removed
transfer metadata between image formats (destination format must support them)
common tools: pan and zoom, rotate, flip
basic image adjustments: brightness, contrast, gamma, invert
visually reduce number of unique colors for PNG and GIF images in order to reduce filesize
(two quantization methods are available: Xiaolin Wu and NeuQuant neural net)
resize image by using well known resample filters (ex: Lanczos3, Catmull Rom, Bicubic, and others)
out-of-the-box support for external PNG optimizers (optipng, pngout, etc)
the compression and the results are comparable to those of commercial products, even higher.
Adaptive logarithmic tone mapping algorithm (Drago) used for HDR images

System Requirements:

Operating System: Windows All Version
Language: English-US
License: Freeware
Author: Lucian Sabo

Changelog:

fixed r s h l v keys prohibited in batch->output path
fixed filesize different single file vs batch mode if image is resized and using automatic mode.The original was analyzed instead of the resized one in batch mode.
fixed RIOT stops opening images after switching to batch mode and back
fixed scrollbar flicker
fixed loading of TGA 8-bit files with a palette size greater that 256
fixed TIFF parser didn't initialize the memory with zeros in stripped mode. This caused random bitmap data if the tiff file was corrupted/invalid.

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