rgb3_to_grayrgb3_to_grayRgb3ToGrayRgb3ToGrayrgb3_to_gray (Operator)
Name
rgb3_to_grayrgb3_to_grayRgb3ToGrayRgb3ToGrayrgb3_to_gray — Transform an RGB image to a gray scale image.
Signature
Description
rgb3_to_grayrgb3_to_grayRgb3ToGrayRgb3ToGrayRgb3ToGrayrgb3_to_gray transforms an RGB image into a gray scale
image. The three channels of the RGB image are passed as three
separate images. The image is transformed according to the
following formula:
gray = 0.299 * red + 0.587 * green + 0.114 * blue .
Execution Information
- Supports OpenCL compute devices.
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Automatically parallelized on tuple level.
- Automatically parallelized on domain level.
Parameters
ImageRedImageRedImageRedImageRedimageRedimage_red (input_object) singlechannelimage(-array) → objectHImageHObjectHImageHobject (byte / int2 / uint2 / real)
Input image (red channel).
ImageGreenImageGreenImageGreenImageGreenimageGreenimage_green (input_object) singlechannelimage(-array) → objectHImageHObjectHImageHobject (byte / int2 / uint2 / real)
Input image (green channel).
ImageBlueImageBlueImageBlueImageBlueimageBlueimage_blue (input_object) singlechannelimage(-array) → objectHImageHObjectHImageHobject (byte / int2 / uint2 / real)
Input image (blue channel).
ImageGrayImageGrayImageGrayImageGrayimageGrayimage_gray (output_object) singlechannelimage(-array) → objectHImageHObjectHImageHobject * (byte / int2 / uint2 / real)
Gray scale image.
Example (HDevelop)
* Transformation from rgb to gray
read_image(Image,'patras')
dev_display(Image)
decompose3(Image, ImageR, ImageG, ImageB)
rgb3_to_gray(ImageR,ImageG,ImageB,GrayImage)
dev_display(GrayImage)
Example (C)
/* Transformation from rgb to gray */
read_image(Image,"patras");
disp_color(Image,WindowHandle);
decompose3(Image,&Rimage,&Gimage,&Bimage);
rgb3_to_gray(Rimage,Gimage,Bimage,&GrayImage);
disp_image(GrayImage,WindowHandle);
Example (HDevelop)
* Transformation from rgb to gray
read_image(Image,'patras')
dev_display(Image)
decompose3(Image, ImageR, ImageG, ImageB)
rgb3_to_gray(ImageR,ImageG,ImageB,GrayImage)
dev_display(GrayImage)
Example (HDevelop)
* Transformation from rgb to gray
read_image(Image,'patras')
dev_display(Image)
decompose3(Image, ImageR, ImageG, ImageB)
rgb3_to_gray(ImageR,ImageG,ImageB,GrayImage)
dev_display(GrayImage)
Example (HDevelop)
* Transformation from rgb to gray
read_image(Image,'patras')
dev_display(Image)
decompose3(Image, ImageR, ImageG, ImageB)
rgb3_to_gray(ImageR,ImageG,ImageB,GrayImage)
dev_display(GrayImage)
Possible Predecessors
decompose3decompose3Decompose3Decompose3Decompose3decompose3
Alternatives
rgb1_to_grayrgb1_to_grayRgb1ToGrayRgb1ToGrayRgb1ToGrayrgb1_to_gray,
trans_from_rgbtrans_from_rgbTransFromRgbTransFromRgbTransFromRgbtrans_from_rgb
Module
Foundation