CropBlackBordersEx(Int32) Method
In This Topic
Detects and sets to White, margins consisting of black color around a GdPicture image.
This method does not have the same behavior as the CropBlackBorders() method: The black borders
are not removed but are set to blank. Therefore, the image dimensions are kept the same.
Syntax
Parameters
- ImageID
- GdPicture image identifier.
Return Value
A member of the GdPictureStatus enumeration.
Example
Whitening the black margins on a black and white tiff image.
using (GdPictureImaging gdpictureImaging = new GdPictureImaging())
{
// LoadInMemory parameter is set to true in order to be able to update the input file.
int imageID = gdpictureImaging.CreateGdPictureImageFromFile("image.tif", true);
// Detect and set to white the black margins using the default confidence level.
gdpictureImaging.CropBlackBordersEx(imageID);
gdpictureImaging.SaveAsTIFF(imageID, "image.tif", TiffCompression.TiffCompressionCCITT4);
gdpictureImaging.ReleaseGdPictureImage(imageID);
}
Example
Whitening the black margins on a black and white tiff image.
using (GdPictureImaging gdpictureImaging = new GdPictureImaging())
{
// LoadInMemory parameter is set to true in order to be able to update the input file.
int imageID = gdpictureImaging.CreateGdPictureImageFromFile("image.tif", true);
// Detect and set to white the black margins using the default confidence level.
gdpictureImaging.CropBlackBordersEx(imageID);
gdpictureImaging.SaveAsTIFF(imageID, "image.tif", TiffCompression.TiffCompressionCCITT4);
gdpictureImaging.ReleaseGdPictureImage(imageID);
}
See Also