Enumerator for selecting the channel on which the Canny Edge Detector filter is applied.
[FlagsAttribute()]
public enum CannyEdgeDetectorCommandChannels
typedef NS_ENUM(NSUInteger, LTCannyEdgeDetectorCommandChannels) {
LTCannyEdgeDetectorCommandChannelsMaster = 0, //CANNY_MASTER_CHANNEL,
LTCannyEdgeDetectorCommandChannelsRed = 1, //CANNY_RED_CHANNEL,
LTCannyEdgeDetectorCommandChannelsGreen = 2, //CANNY_GREEN_CHANNEL,
LTCannyEdgeDetectorCommandChannelsBlue = 4, //CANNY_BLUE_CHANNEL,
};
public final class CannyEdgeDetectorCommandChannels
extends java.lang.Enum<CannyEdgeDetectorCommandChannels>
public:
[FlagsAttribute]
enum class CannyEdgeDetectorCommandChannels sealed
class CannyEdgeDetectorCommandChannels(Enum):
Master = 0
Red = 1
Green = 2
Blue = 4
Value | Member | Description |
---|---|---|
0x00000000 | Master | Applies the Canny filter on the master channel |
0x00000001 | Red | Applies the Canny filter on the red channel |
0x00000002 | Green | Applies the Canny filter on the green channel |
0x00000004 | Blue | Applies the Canny filter on the blue channel |
The Canny filter can only be applied on the master channel if the image is gray. The function returns ERROR_INV_PARAMETER if the image is gray and one of the channels selected is a colored channel.
It is possible to select more than one channel from the colored (Red, Green, Blue) channels.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Core;
public void CannyEdgeDetectorCommandExample()
{
RasterCodecs codecs = new RasterCodecs();
RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "cannon.jpg"), 0, CodecsLoadByteOrder.Bgr, 1, 1);
CannyEdgeDetectorCommand Canny = new CannyEdgeDetectorCommand();
Canny.Radius = 1;
Canny.LowThreshold = 2;
Canny.HighThreshold = 5;
Canny.Run(image);
codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "cannon_Canny.bmp"), Leadtools.RasterImageFormat.Bmp, 24, 1, 1, 1, Leadtools.Codecs.CodecsSavePageMode.Overwrite);
image.Dispose();
codecs.Dispose();
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images";
}
Leadtools.ImageProcessing.Core Namespace
CannyEdgeDetectorCommand Class
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