Therefore, in some cases, larger speckles can be completely removed by running Despeckle more than once. Resize Changes picture size. User specifies horizontal dimension in pixels, then program will suggest pixels for vertical dimension to maintain original aspect ratio of the picture, or type in a different vertical dimension if user wants to change aspect ratio. As a next step, the resized picture can be saved in any of the more than 30 image formats. Resample Resamples the current picture.
Spatial filter Imposes a spatial filter on the bitmap.
Spatial filters are used for operations such as sharpening an image or detecting edges within the image. If a bitmap uses a color palette, this method matches the new brightness value of each pixel to the nearest color in the existing palette. Binary Filter Imposes one of the predefined binary filters for erosion or dilation of black objects. A halftone bitmap is a 1-bit bitmap that has been dithered for black and white printing or display. If the bitmap is originally 1-bit but is not black and white, this method changes it to black and white.