Radical Image Optimization Tool 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. It has a simple and easy to use interface where you will be able to control compression, number of colors, metadata settings and much more.

Radical Image Optimization Tool 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. It has a simple and easy to use interface where you will be able to control compression, number of colors, metadata settings and much more, and select image format (JPG, GIF or PNG) for your output file.

RIOT key features:

* open multiple graphic file formats by looking first at the magic number (it does not need file extension to recognize format)including support for uncommon images types (up to 128 BPP, integer and floating point. EX: hdr images, 16 bit grayscale, etc). Adaptive logarithmic tone mapping algorithm (Drago) used for HDR images
* 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
* 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
* resize image by using well known resample filters (ex: Lanczos3, Catmull Rom, Bicubic, and others)
* the compression and the results are comparable to those of commercial products.

New Release
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.
[ RIOT Portable release history ]

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