Effectbank

Effectbank is a photo editor with rich effects that can be seamlessly applied to images. Some of them are customizable. It offers support for BMP, JPEG and PNG.

It's not wrapped in the most attractive interface. In fact, the main window actually has a rudimentary look, but it's simple to navigate and to open pictures as base images or textures. New workspaces can be created by specifying a name and preset size, together with the image width, height and resolution.

Tools are available for drawing regions to restrict the influence of the effects, in the shape of rectangles, circles or ellipses. Moreover, you can use a color picker, fill regions with color or gradient, as well as resize the picture.

As far as effects are concerned, it's possible to convert images to grayscale, invert colors, as well as adjust the brightness, contrast, static curves, tone-mapping and HSV (hue, saturation, value).

Effectbank lets you apply filters with emboss or sepia, normalize, lighten or darken the histogram, convert from or to RGB, set a minimum and maximum filter, or generate a 3D histogram. Other effects focus on blur, sharpen, distort, mirror, rotate, mosaic, blending, lens flare, reduction, and others.

Various effects are available for textures too, such as sines, sawtooth, patterns, polygons, vertical or horizontal gradient, furry, circles, clouds, or snake skin. Once you're satisfied with all modifications, you can overwrite the original image or save it to a new file with any of the three supported extensions.

It left a small footprint on system resources in our tests, running on low CPU and RAM. No error dialogs popped up and it didn't hang or crash. However, it needs more work when it comes to the UI's appearance and the way the options are organized. Otherwise, Effectbank contains a wide array of customizable image filters.