Most of the times image file size might be large preventing your from sharing the file. The best method is to optimize the image before sending them. Radical Image Optimization Tool (RIOT) is a freeware tool for Windows which is an image optimizer that will let you to visually adjust compression parameters while keeping minimum file size. The app uses 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.
Using this tool, you will be able to control compression, number of colors, metadata settings and much more. You can select image format from JPEG, GIF or PNG for your output file.
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).
- 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);
- Batch support (process multiple files at once)
- 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
The app is available in portable version and is lightweight, fast and simple to use, yet powerful for advanced users.RIOT is used as plugin for programs like The GIMP, IrfanView or XnView.
