ImageGear Professional for Windows ActiveX
ImageGear Alpha Channel Support

Alpha channel is an additional image channel that specifies transparency (or opacity) of each pixel in the image. ImageGear provides alpha channel support for the following file format filters:

Format Support
Adobe PSB Supports single Alpha channel for Read only. Supports additional Alpha channels as ImageGear Extra channels for Read only.
Adobe PSD Supports single Alpha channel for Read only. Supports additional Alpha channels as ImageGear Extra channels for Read only.
CUR Supports single 8-bit alpha channel for read/write. Supports single 1-bit alpha channel for read only.
EXIF-JPEG Supports single Alpha channel for Read/Write.
EXIF-TIFF Supports single Alpha channel for read only. Supports additional Alpha channels as ImageGear Extra channels for read only.The following compressions are supported with alpha channel:
  • Uncompressed
  • Packed Bits
  • LZW
  • Deflate
FlashPix Supports single Alpha channel for read only. Converts RGB + Alpha to RGB during loading.
ICO Supports single 8-bit alpha channel for read/write. Supports single 1-bit alpha channel for read only.
JPEG Supports single Alpha channel for Read/Write.
JPEG 2000 Supports single Alpha channel for read/write, for Grayscale and RGB images.
JPX Supports single Alpha channel for read/write, for Grayscale and RGB images. Supports additional Alpha channels as ImageGear Extra channels for read/write.
MAC PICT Supports single alpha channel for read only. Alpha channel have to be 8-bit image.
PNG Supports single Alpha channel for read/write.
RAW Supports single Alpha channel in uncompressed images for read only.
SGI Supports single alpha channel for read and write.
TGA Supports single alpha channel for read and write.
TIFF Supports single Alpha channel for read and write. Supports additional Alpha channels as ImageGear Extra channels for read and write.The following compressions are supported with alpha channel:
  • Uncompressed
  • Packed Bits
  • LZW
  • Deflate

 

 


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