Feature Description

Mixed Raster Content (MRC) simultaneously maximizes image compression and image quality with intelligent segmentation and compression. A non-MRC image format requires a sacrifice of either compression or quality because the format is designed to only handle one type of image data: black and white, grayscale, or color. MRC formats are different because they segment images into sections and layers. Those sections and layers are compressed with an algorithm that is optimum for the characteristics and type of the data that it contains. LEADTOOLS provides everything .NET (C# & VB), WPF, C/C++, and web developers need to load, view, convert, and save MRC files.

LEADTOOLS SDK MRC Compressed Formats

LEAD MRC Compressed Format

LEADTOOLS employs an efficient image-segmentation algorithm to achieve high compression ratios within the LEAD Mixed Raster Content (MRC) format. The segmentation process automatically divides the image into nine different image segment types, including background, single color, black and white, text, and full color. LEADTOOLS employs a three-layer image model to structure and combine the data in order to achieve the optimum balance of compression and image quality.

  • Maximizes compression by utilizing nine segment types:
    • Anti-aliased black and white text
    • Background
    • Black and white
    • One color
    • Two color
    • Four color
    • Four level grayscale
    • Full color image
    • 256-level grayscale
  • Automatic image segmentation with optimization options
  • Manual image segmentation to override automatic segmentation results
  • Specify compression algorithm used for each image segment:
    • JPEG
    • JBIG
    • CCITT G3/G4
    • LZW
    • CMP
    • CMW

PDF MRC

LEADTOOLS supports saving MRC data within PDF files using industry-standard methodologies and formats. This means that PDF files created by LEADTOOLS using MRC can be loaded and viewed in any PDF viewer that supports standard PDF files. By storing complex mixed raster content, developers can create PDF files resulting in better compression and quality than a standard raster PDF file.

  • Automatically segment the image with optimization options
  • Manually segment the image to take full control over file size and image quality optimization
  • Multiple compression options, including:
    • JPEG
    • JPEG 2000
    • CCITT G3/G4
    • JBIG2
    • LZW
    • MRC
  • Automatic background detection

LEADTOOLS also includes advanced PDF SDK technology that goes far beyond compression. Click here for more information.

T.44 MRC

The goal of the ITU-T T.44 recommendation for MRC is to provide an efficient mechanism to exchange and archive images that include bitonal and color areas. T.44 achieves these goals by segmenting images into three layers: foreground, background, and mask. Each layer is separately compressed using the most efficient type of compression for that image data type. When an MRC T.44 file is loaded, the layers are uncompressed and recombined to restore the original image.

  • Automatic image segmentation with optimization options
  • Manual image segmentation to override or compliment the automatic segmentation results
  • Specify compression algorithm used for each image segment:
    • JPEG
    • JBIG2
    • CCITT G3/G4

Technology Related to Mixed Raster Content (MRC)