PixelFormat

Specifies the color space and bit depth of an image.

Remarks

The PixelFormat enumeration defines the color model, channel arrangement, and bit depth for images in Grooper. It determines how pixel data is stored, displayed, and processed, affecting compatibility with file formats, compression, and image processing activities.

Usage

• Select the appropriate pixel format when creating, converting, or saving images.
• Pixel format impacts file size, image quality, and available processing options.
• Use binary formats for black and white images, grayscale for single-channel images, and color formats for multi-channel images.

Configuration Guidance

• Choose Pixel1bppIndexed for bitonal (black and white) images, such as scanned documents.
• Use Pixel8bppGrayscale for single-channel grayscale images.
• Use Pixel24bppBgr or higher for color images requiring full RGB or CMYK support.
• Higher bit depths (e.g., 16, 48, or 64 bits) allow for more color or grayscale levels, but increase file size.
• Ensure the pixel format matches the requirements of downstream activities (e.g., OCR, export, or rendering).

Can be one of the following values:

Name	Value		Description
Pixel8bppGrayscale	133248	►	8-Bit Grayscale The Pixel8bppGrayscale format stores each pixel as an 8-bit value, representing 256 levels of gray. Usage Use for single-channel grayscale images, such as medical scans or monochrome photos. Balances quality and file size for non-color images.
Pixel24bppBgr	137224	►	24-Bit Color The Pixel24bppBgr format stores each pixel as three 8-bit values (blue, green, red), supporting full RGB color. Usage Standard for color photographs and images requiring true color. Widely supported by image formats and processing tools.
Pixel32bppBgr	139273	►	32-Bit Color The Pixel32bppBgr format stores each pixel as four 8-bit values (blue, green, red, unused). Usage Similar to 24-bit color, but with an extra unused byte. Used for compatibility with certain image formats.
Pixel1bppIndexed	196865	►	Black and White The Pixel1bppIndexed format stores each pixel as a single bit, supporting only black and white values. Usage Ideal for scanned documents, text, and forms. Produces small file sizes and is compatible with most image formats.
Pixel4bppIndexed	197634	►	4-Bit Palleted The Pixel4bppIndexed format uses a 4-bit palette, allowing up to 16 colors per pixel. Usage Suitable for simple graphics or images with limited color requirements. Not recommended for photographs or detailed images.
Pixel8bppIndexed	198659	►	8-Bit Palleted The Pixel8bppIndexed format uses an 8-bit palette, supporting up to 256 colors per pixel. Usage Suitable for indexed color images, such as GIFs or simple graphics. Not recommended for high-fidelity color images.
Pixel16bppGrayscaleAlpha	397442	►	16-Bit Grayscale Alpha The Pixel16bppGrayscaleAlpha format stores each pixel as two 16-bit values (grayscale and alpha). Usage Use for high-fidelity grayscale images requiring transparency. Suitable for specialized imaging applications.
Pixel16bppGrayscale	1052676	►	16-Bit Grayscale The Pixel16bppGrayscale format stores each pixel as a 16-bit value, supporting 65,536 levels of gray. Usage Use for scientific, medical, or archival images requiring high grayscale fidelity. Larger file sizes than 8-bit grayscale.
Pixel48bppBgr	1060876	►	48-Bit Color The Pixel48bppBgr format stores each pixel as three 16-bit values (blue, green, red), supporting high-fidelity color. Usage Use for professional photography, scanning, or archival images. Provides greater color depth and accuracy.
Pixel32bppBgra	2498570	►	32-Bit Color Alpha The Pixel32bppBgra format adds an 8-bit alpha channel to 24-bit color, supporting transparency. Usage Use for images requiring transparency or compositing. Common in graphics and UI elements.
Pixel64bppBgra	3424269	►	64-Bit Color Alpha The Pixel64bppBgra format stores each pixel as four 16-bit values (blue, green, red, alpha). Usage Use for high-fidelity color images requiring transparency. Suitable for advanced graphics and imaging applications.
Pixel32bppCmyk	4333699	►	32-Bit CMYK The Pixel32bppCmyk format stores each pixel as four 8-bit values (cyan, magenta, yellow, black). Usage Use for print-ready images requiring CMYK color space. Common in publishing and prepress workflows.

Used By

ConvertTIFF PageJPEG ImageImage Info