You can adjust the brightness of an image to lighten or darken the colors. The gamma correct feature lets you identify details in a low-contrast image without significantly affecting the shadows or highlights of the image. Changing the gamma setting affects the light intensity of the image, however, because the effect is nonlinear, changes affect the midtones but still maintain the overall contrast. You can also change a color image to grayscale.
Use the smooth feature to soften the overall look of an image by rounding sharp edges.
To set an image to grayscale
Click Filter, Grayscale.
To change image brightness
1. Click Filter, Intensity, Brightness.
2. Type the brightness factor in the Enter Brightness Factor (%) box.
To gamma correct an image
1. Click Filter, Intensity, Gamma Correct.
2. Type the gamma value in the Enter Gamma Value (>0) box.
To smooth an image
Click Filter, Smooth.
Note
You can reset an image to its original color or smoothness setting by clicking Edit, Reset.