7.1.444. immaskΒΆ

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Usage: immask [-thresh #] [-mask mask_image] [-pos] input_image output_image * Masks the input_image and produces the output_image; * Use of -thresh # means all pixels with absolute value below # in

input_image will be set to zero in the output_image
  • Use of -mask mask_image means that only locations that are nonzero

    in the mask_image will be nonzero in the output_image

  • Use of -pos means only positive pixels from input_image will be used

  • At least one of -thresh, -mask, -pos must be used; more than one is OK.

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