LEAD CMP Factors An outline of CMP parameterization

CMP and JPEG compression alogorithms are lossy. Extremely high compression ratios can be achieved by throwing away high-frequency image information.There is a tradeoff between the amount of image degradation (high frequency information lost) and the amount of compression achieved, ranging from practically invisible to the human eye at small compression ratios to visibly "blocky" at the very highest compression ratios.

If you need or want superior lossless or lossy compression, try JPEG2000 or LEAD CMW wavelet based compressions. CMP always compresses better than JPEG with the same amount of visual image loss.

LEAD CMP Q Factors

When compressing an image using LEAD's CMP algorithm, you can specify any of the following compression factors:

LEADTOOLS Q Factors
Q Factor	Predefined options for LEAD only
PQ1	Perfect quality 1 This option compresses all colors of a 24-bit file and maintains the quality of the original image at a smaller file size. As the name suggests, there is no visual loss of color at this setting.
PQ2	Perfect quality 2 This will produce a smaller file size than PQ1 while maintaining similar quality.
QFS	Quality far more important than size This option removes colors not noticed by the human eye. Most viewers cannot tell the difference between an image compressed at this level and the original image.
QMS	Quality more important than size While more colors are removed, most of them are colors or shades that are close to one another. The compressed image will appear very much like the original image. It will take some study to see the difference.
QS	Quality and size equally important This option provides the highest compression while maintaining good image quality. Try this option first, then move up or down the list accordingly to obtain acceptable compression size and image quality.
SQS	Size more important than quality (sharp) This option is recommended for images that have sharp edges. For example, an image that has a text overlay or an image with many straight lines. While it creates a larger file than the next option, it retains better edges.
SQT	Size more important than quality (less tiling) This option produces less tiling in the image than the previous options. However, it may distort text or straight lines. It is a good option for image database applications.
MCQ	Maximum compression keeping quality This option provides maximum compression while maintaining as high as possible image quality.
MC	Maximum compression This option gives maximum compression. It is equivalent to a Q factor of 255.

This feature is available in the following products

Pricing Structure
Product	Price	Try
LEADTOOLS Raster Imaging SDK	$495	Free Trial
LEADTOOLS Raster Imaging Pro SDK	$995	Free Trial
LEADTOOLS Vector Imaging Pro	$1995	Free Trial
LEADTOOLS Document Imaging SDK	†$2495	Free Trial
LEADTOOLS Document Imaging Suite	†$3995	Free Trial
LEADTOOLS Medical Imaging SDK	†$4495	Free Trial
LEADTOOLS Medical Imaging Suite	†$7995	Free Trial

†Marked toolkits require runtime licensing based on the deployment of the application you develop. Several purchase options are available. For more information, please contact oemsales@leadtools.com or call a LEAD sales representative.

LEAD CMP Factors An outline of CMP parameterization

LEAD CMP Q Factors

This feature is available in the following products

Live Chat

This Feature is included in the following products:

Free Trial / Purchase:

Helpful Information :