ColorResolutionCommand Class (original) (raw)
Summary
Converts an image from any bits-per-pixel to any bits-per-pixel.
Syntax
C#
Objective-C
C++/CLI
Java
Python
@interface LTColorResolutionCommand : LTRasterCommand public class ColorResolutionCommand extends RasterCommand class ColorResolutionCommand(RasterCommand): Example
This example will run the ColorResolutionCommand on an image to convert it to 8 and 4 bits/pixel.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
public void ColorResolutionCommandExample()
{
RasterCodecs codecs = new RasterCodecs();
string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp");
string destFileName1 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_colorres8.bmp");
string destFileName2 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_colorres4.bmp");
// Load the source image from disk
RasterImage image = codecs.Load(srcFileName);
// First color-res it to 8 bits per pixel using the Netscape palette into a seperate image
ColorResolutionCommand cmd = new ColorResolutionCommand();
cmd.Mode = ColorResolutionCommandMode.CreateDestinationImage;
cmd.BitsPerPixel = 8;
cmd.Order = RasterByteOrder.Rgb;
cmd.DitheringMethod = RasterDitheringMethod.None;
cmd.PaletteFlags = ColorResolutionCommandPaletteFlags.UsePalette;
cmd.SetPalette(RasterPalette.Netscape());
cmd.Run(image);
RasterImage destImage = cmd.DestinationImage;
Assert.IsTrue(destImage.BitsPerPixel == 8);
// Save it to disk
codecs.Save(destImage, destFileName1, RasterImageFormat.Bmp, 8);
destImage.Dispose();
// Now color-res the image in-place to 4-bits per pixel using the Optimized palette
cmd.Mode = ColorResolutionCommandMode.InPlace;
cmd.BitsPerPixel = 4;
cmd.Order = RasterByteOrder.Rgb;
cmd.DitheringMethod = RasterDitheringMethod.None;
cmd.PaletteFlags = ColorResolutionCommandPaletteFlags.Optimized;
cmd.Run(image);
Assert.IsTrue(image.BitsPerPixel == 4);
// Save it to disk
codecs.Save(image, destFileName2, RasterImageFormat.Bmp, 4);
// Clean Up
destImage.Dispose();
image.Dispose();
codecs.Dispose();
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images";
}
Leadtools Assembly