Rotateangle and CCITT4

[rromeijn]

i Use several functions on an bitonal Tiff CCITT4
when i use
SaveAsTIFF(Filename, 4)
the image gets saved as a Tiff CCITT4

But when i use RotateAngle and SaveAsTIFF(Filename, 4), the image becomes a LZW compressed color or grayscale image

Is this the normal way in GdPicture?
How do i get my image saved as Bitonal Tiff CCITT4

Delphi code used:

Code: Select all

 Imaging1.CreateImageFromFile(Filename);
  D:=-1*Imaging1.GetSkewAngle;
  Imaging1.RotateAngle(D);
  Imaging1.SaveAsTIFF(Dest, 4);
  Imaging1.CloseNativeImage;

[Loïc]

Hi,

Yes it is a normal way..

Just use:

Code: Select all

Imaging1.CreateImageFromFile(Filename);
D:=-1*Imaging1.GetSkewAngle;
Imaging1.RotateAngle(D);
Imaging1.ConvertTo1Bpp();
Imaging1.SaveAsTIFF(Dest, 4);
Imaging1.CloseNativeImage;

Hope this helps,

Loïc