InvertWhiteText(ImGearPage,Int32,Int32,Int32) Method
Detects areas of white text on black backgrounds and inverts them so that they become black text on white backgrounds.
Parameters
- page
- 1-bit ImGearPage object to apply the method to.
- minWidth
- Specifies the minimum width for areas that you would like to invert.
- minHeight
- Specifies the minimum height for areas that you would like to invert. For
example, if you set minX = 60 and minY = 20, ImageGear will only invert sections of white text on
black background that have a minimum width of 60 pixels and a minimum height of 20 pixels.
- minThickness
- Specifies the minimum "thickness" of spaces that fall between sections
of text that will be inverted. This minimum value indicates those sections of text to be treated as
one section based on how close they are to one another. As an example, let's say you have three
adjacent sections of white text on black backgrounds that contain the words, "There,"
"is," and "hope." If "There" and "hope" meet your minimum
size requirements they will be inverted. If "is" is below your minimum size requirements,
and you have not set minT, "is" will note be inverted, resulting in "There" and
"hope" looking normal, while "is" remains white text on black background. To
prevent this (if desired), you would need to set minT to a value small enough to include the spaces
before and after the word "is." This way, all the words would be treated as one section
and inverted together.
// Invert sections of white text on black background in the image using
// a minimum height of 10, width of 30, thickness of 10.
ImGearIC.InvertWhiteText(igPage, 40, 100, 10);
' Invert sections of white text on black background in the image using
' a minimum height of 10, width of 30, thickness of 10.
ImGearIC.InvertWhiteText(igPage, 40, 100, 10)