In This Topic ▼

LEADTOOLS Color Conversion C API Introduction

Summary

The LEADTOOLS Color Conversion C API features provides many options to maximize image display quality for any imaging purpose, including medical images, scanned documents or digital photographs.

Key Features:

Convert images from any color resolution to any other color resolution, from 1-bit to 64-bit, with multiple dithering methods using various palette options.
Use flexible palette options, including LEAD's fixed palette, an auto-optimized palette, or a user-defined palette.
Apply palettes to a single image, or to an entire list of images.
Convert, separate to and reconstruct images from individual RGB, BGR, CMYK, CMY, HSV, HSL, YUV, YIQ, CIELAB, XYZ, YCCK, Y41P, UYVY, YUY2, YVU9, ARGB4444, IHS and YCC color planes using LEAD's built-in conversion functions, ICC color profiles or Emulation Tables.
When working with 12-bit and 16-bit grayscale images *, use LEADTOOLS' window leveling ** to select the desired bit range for display or processing.
Helps determine the correct color depth for whatever hardware used
Enables the creation and manipulation of ICC profiles for either software development or hardware manufacturing.

* 12-bit and 16-bit grayscale support included only in Document and Medical Imaging products.

** LEADTOOLS' window leveling supported only in Medical Imaging products.

Supported Conversions

Source Color Space	Can be converted to	Conversion method	Recommended
RGB	Any other color space.	Built-in, ICC profiles, or emulation tables, depending on the destination color space.
BGR	Any other color space.	Built-in, ICC profiles, or emulation tables, depending on the destination color conversion.
YUV	Any other color space.	Built in.
CMYK	Any other color space.	Emulation Tables (one way CMYK => RGB) ICC Profiles. Built-in.	The best conversion is through the ICC Profiles (USE_ICC). This is because of the nature of the CMYK conversion, which is machine-dependant. You can use profiles that vary in the degree of black color (ink) generation.
HSV	Any other color space.	Built-in.
HSL	Any other color space.	Built-in.
YIQ	Any other color space.	Built-in.
LAB	Any other color space.	Emulation Tables (one way CMYK => RGB). ICC Profiles. Built-in.	For two-way conversion (RGB to LAB and vice versa), the best solution is with emulation tables and built-in conversions. These preserve the colors better. However, for one-way conversion you can use ICC profiles.
XYZ	Any other color space.	Built-in.
YCCK	Any other color space.	Built-in.
Y41P	Any other color space.	Built-in.
UYVY	Any other color space.	Built-in.
YUY2	Any other color space.	Built-in.
YVU9	Any other color space.	Built-in.
YCC	Any other color space.	Built-in.
ARGB4	Any other color space.	Built-in.
IHS	Any other color space.	Built-in.

Supported Environments

LEADTOOLS Color Conversion C API Introduction

Summary

Key Features:

Supported Conversions

See Also

Reference

Version History