bitplane segmentation menu

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This menu is for segmentation by bitslicing. Bitslicing is a primitive segmentation technique that involves the binary representation of the grey shades of the pixels. The procedure is as follows:

  1. You select a bitplane by entering a number between 0 and 7 in the Which bitplane? menu field.
  2. You display the segmentation by clicking on the DISPLAY BITPLANE menu field. In this display, the red pixels are the selected ones, and the unselected pixels appear with their original grey shades.
  3. When you are satisfied with the segmentation:

    1. Enter the name you want for the bitmap in the Bitmap file menu field.
    2. Set the Magnification factor menu field to the degree of magnification you want for the bitmap image. A value of 1 means that the bitmap matches the original black and white image pixel-for-pixel. A value of 2 means that each original pixel is interpolated into a 2 by 2 set of pixels before the bitslice is performed, resulting in a bitmap that has twice the resolution of the original image. You can use magnification factors up to 16.
    3. Set the Run-length encode? toggle according to whether you want the bitmap to be run-length encoded. Encoding usually makes the bitmap file much smaller.

  4. Click on CREATE BITMAP to create the bitmap file.