This brush allows you to Brush-In contrast to any area of the image.

You can of course change the contrast of the whole image with Contrast & Brightness, but the contrast brush will allow you to brush-in the contrast to the exact place where you need it.

This brush lightens the image. With the soft brush size you can use it as a tool for creating highlights.

The Lighten image will enhance the brightness of the spot you are painting.

This Brush darkens the image. With the soft brush size you can use it as a tool for creating shadows. This tool will decrease the brightness of a spot where you are painting.

This brush changes color into Black and White. You can de-colorize some part of the image, or with Brush Opacity, make the colors less visible. Also you can use it as a composition tool to enhance a particular object. You can achieve the same effect in opposite fashion - first turn the whole image to gray scale and the use Original Brush to bring up the original colors.

This Brush boosts and enhances the colors of the image as you paint. Be careful not to over burn the image with color...

With this brush you can colorize any image. Just select the foreground color from Color & texture bar and paint on the image. This isn't the same as simple painting over the image, coloring preserves the details and intensity. Now you can change car or clothing colors! If the coloring is too strong use the Brush Opacity slider to soften the color cover. As always, if you paint over something else, don't worry, you can remove it at anytime with Original Brush. (See the end of this page)

Colorize simulates the old fashioned technique of "colorizing" black and white photos with special colors. It can produce very realistic results.

If you are looking for other simple ways to replace colors on image , you can use any normal brush (Paint Brush for example) and select Overlay mode in the Brush bar. This produces stronger "artificially looking" results.

This brush removes Red eye. Just paint over the eyes of the person on the image with it.

Skin brush cleans the skin. You will need to use it a few times over the face to remove most disturbing skin details.You can also try an automatic filter from Filters-Noise-Auto Clean Skin

This brush removes thin scratches from the image. The tool is best for a film scratches, but it could also remove thin telephone cables, lines etc....

This is a simple yet sometimes very powerful brush. It allows you to paint a horizontal or vertical transition between 2 points. Great for removing vertical lines, horizontal lines, or objects. First you have to define the horizontal/vertical limits (bridge), then you paint over the image.

Line - masking horizontal lines, such as electrical wires on the sky or horizontal scratches etc. This works only if the line is on background with few or no details (such as the sky). It replaces the pixels by averaging the value above and under the brush center. A different brush sizes would use different top/bottom average ratio and you should use a brush little bigger than the wire. The best is to use short strokes along the horizontal line of the wire with the brush center on the wire.

Spot - masking alone standing spots on the image. It replaces the pixels by averaging the values from four corners of the brush. To remove single spots select a brush bigger than the spot and click on it, then release. You may repeat this few times.

It could be used also as a smudge tool where you click and then drag the mouse.

This brush will paint a Blur into the image. The blur effect is not very strong so you should paint, then release mouse button and then paint again to achieve a stronger effect.

This brush sharpens the image under it as you paint.

The effect may be a little strong, but you can adjust it by sliding the opacity slider.

This brush paints back the original of the image.

The original is defined when an image is loaded from the disk (such as digital photography). Original is not defined if you start painting into a new document, however, at anytime you can set or define a new original of the image from the menu Image > Set as Original. You can also paste a completely new original with Paste as original in the menu Edit.

You can use Original brush not only to regress if you make a mistake, but you can also try a reverse process, where you can apply the effect to the complete image and then paint back areas which shouldn't have the effect. See also Eraser tool for tips.

Example: