RIOT (Radical Image Optimization Tool) 0.4.6

[Boyfriend]

RIOT is a free image optimizer that will let you to visually adjust compression parameters while keeping minimum file size.

Main 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

Change log (version 0.4.6, 25.02.2011):

+ added Help file (not yet complete)
+ DLL version: added flags for all JPEG chroma settings
* DLL version: the default chroma for RIOT_SaveToFile is now "medium" instead of "low"
* Batch mode: fixed a bug when using a bat file as external PNG optimizer and @echo off is not on the first line.
This problem does not occur in normal mode.
* DLL version: fixed some sliders going nuts when pressed during tooltip display
* fixed preview executed twice when asked to resample big images
* Batch settings "Keep original date/time" and "Report file size changes" are now remembered at startup
* if "Report file size changes" is checked and the selected external optimizer is not installed the reported size
is -100% or ~ -99.9%. Fixed !
* fixed error running same batch twice with external optimizer and "Keep original date/time is checked
* file is now set as modified only if OptimizePNG is successfully executed
* fixed related issues reported in the RIOT forum, with the external PNG optimizer implementation
* fixed a memory leak in FileIsWritetable
! avoid some file locking problems

OS Compatibility: Windows 2000 or newer including XP, Vista, Windows 7
More info: Radical Image Optimization Tool
Download: RIOT 0.4.6 Download

[jj1two3]

Thanks Boyfriend for the update. I will check this one out.

[paf]

Thanks, Boyfriend. It's indeed a very good program, IMO. I'm updating .