Use the command to obtain the minimum and maximum intensity values present in a 12 or 16-bit grayscale and 48 and 64-bit image. Use the command to obtain the low and high bits of the values present in a 12 or 16-bit grayscale and 48 and 64-bit image. Use the command to get the palette from the image. Use the command to get the number of unique colors in an image. It is used for all resolutions, including 12 and 16-bit grayscale. This command can chart red, green, and blue separately or together. Use the command to obtain an array that charts how many times each intensity level occurs in an image. This includes such information as the mean, median, standard deviation, maximum, minimum, pixel count values. Use the command to obtain statistical information about the images. Use the command to create a halftone screen effect for an image while keeping its continuous range of tones.įor an example, refer to L_HalfTonePatternBitmap. Use the command to convert a 1-bit, 4-bit, 8-bit, 16-bit, 24-bit, or 32-bit image to a halftoned image, with a specified pattern rotation. The conversion will not change the color resolution. Use the to convert an image to a grayscale level by reducing the saturation of each color to zero. Note that with this command, the circles are large enough to be individually seen.įor an example, refer to L_ColorHalfToneBitmap. The size of each circle is proportional to the brightness of the rectangle which it is replacing. Each channel has a separate grid of circles, and has its own angle setting. Use the command to divide the image into rectangles and replace each rectangle with circles. You can use this to recombine the images that the command creates. Use the command to create a color image by merging grayscale images that were created as color separations. Note that in addition to the CYMK color space used by CYMK process printing, this command also supports the RGB, CMY, HSV, and HLS color-space models. Use the command to separate the specified image by color plane to produce one grayscale image per plane.
LEADTOOLS provides a number of commands for working with color images and changing them so they are suitable for printing using halftoning techniques. Instead the dots are broken up into small halftone cells, and the different color values are created by varying the number of the small halftone cells that take color. In digital printing, generally the dot size remains constant (instead of varying). To prevent moiré patterns, each screen is set to a different angle. After different adjustments are made to the separations, the article being printed goes through a process where each color gets printed in succession, one on top of the other. These dots are not large enough to be seen without magnification. Different sizes of the dots of ink are used to produce the different levels of color. In the CMYK colored print process four separations (also called screens) are made, one for each process color. Halftoning is taking an image that uses continuous tones and creating one suitable for printing using one color of ink (grayscale) or four colors of ink (color printing using the Cyan, Magenta, Yellow and Black process colors).
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