Free image processing engine software for windows

Process you images in no time with the easy to use, open source, free and stable Image processing lab! IPlab is a free and easy-to-use image processing sowftware. The best thing about it all is, its open source! Coded in C#, you can download the source code, and edit it to your liking. If you are going to redistribute, please make sure it abides to the copyright. Some useful features are not included in the current version of iplab, but there is another open source application that has accessories that you may want to integrate with IPlab.
Main features:
- Color filters (grayscale, sepia, invert, rotate, channel extraction, channel replacing , channel filtering, color filtering, Euclidean color filtering);
- HSL filters (linear correction, brightness, contrast, saturation, hue modifier, HSL filtering);
- YCbCr filters (linear correction, YCbCr filtering, channel extraction/replacement);
- Binarization filters (threshold, threshold with carry, ordered dithering, Bayer dithering, Floyd-Steinberg, Burkes, Jarvis-Judice-Ninke, Sierra, Stevenson-Arce, Stucki dithering methods);
- Automatic binarization (simple image statistics);
- Mathematical morphology filters (erosion, dilatation, opening, closing, hit & miss, thinning, thickening);
- Convolution filters (mean, blur, sharpen, edges, Gaussian);
- 2 Source filters (merge, intersect, add, subtract, difference, move towards, morph);
- Edge detectors (homogeneity, difference, sobel, canny);
- Blob counter, connected components labeling;
- Pixellate, simple skeletonization, jitter, shrink, oil painting;
- Levels linear filter, gamma correction;
- Median filter, adaptive smoothing, conservative smoothing;
- Resize and rotate;
- Texture generators based on Perlin noise;
- Texture filters (texturer, textured filtering, textured merging);
- Fourier transformation (lowpass and hipass filters).

Image Processing Wizard is a fast, reliable and easy-to-use software tool, useful for batch resizing digital pictures and quickly adjusting their quality and file size.
It is ideal for preparing pictures for digital photo albums or generating thumbnails. You can process very fast large amounts of picture files, with a few clicks and a very simple and easy to use interface.
Main features:
- multiple input formats accepted (JPG, BMP, TIFF, GIF, PNG)
- very easy and convenient way to select multiple files and directories for processing
- multiple options for resizing the pictures to desired dimensions (keep aspect, stretch, crop)
- saving as JPG with different quality settings options
- adding the chosen prefix or suffix to file name, keeping the original directory structure

Image Robot 1.2 offers you a powerful one-stop source for batch image processing. You can easily convert a variety of image file formats, resize images and create and apply an optimized palette to any number of images, all in a batch process mode. No programming is necessary... simply select the image files and the batch process commands you would like to use and Jasc Image Robot does the rest in a fraction of the time it would take to edit each file separately.

Image Filter Tester is an image processing application that applies any number of layers of user-defined filters to an image and immediately shows the result.
Main features:
- You may drag-and-drop to open an image file, or paste from clipboard.
- The image views are fully interactive. The images can be zoomed, moved, flipped, or rotated.
- The images can be copied, saved or printed.
- Image Filter Tester 1.1 runs under Windows 9x, NT, 2k, XP.
- No additional DLL (such as MFC or VB) is required.
- No installation is needed.