OpenCV
4.0.0
Open Source Computer Vision
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Enumerations | |
enum | cv::cuda::AlphaCompTypes { cv::cuda::ALPHA_OVER, cv::cuda::ALPHA_IN, cv::cuda::ALPHA_OUT, cv::cuda::ALPHA_ATOP, cv::cuda::ALPHA_XOR, cv::cuda::ALPHA_PLUS, cv::cuda::ALPHA_OVER_PREMUL, cv::cuda::ALPHA_IN_PREMUL, cv::cuda::ALPHA_OUT_PREMUL, cv::cuda::ALPHA_ATOP_PREMUL, cv::cuda::ALPHA_XOR_PREMUL, cv::cuda::ALPHA_PLUS_PREMUL, cv::cuda::ALPHA_PREMUL } |
enum | cv::cuda::DemosaicTypes { cv::cuda::COLOR_BayerBG2BGR_MHT = 256, cv::cuda::COLOR_BayerGB2BGR_MHT = 257, cv::cuda::COLOR_BayerRG2BGR_MHT = 258, cv::cuda::COLOR_BayerGR2BGR_MHT = 259, cv::cuda::COLOR_BayerBG2RGB_MHT = COLOR_BayerRG2BGR_MHT, cv::cuda::COLOR_BayerGB2RGB_MHT = COLOR_BayerGR2BGR_MHT, cv::cuda::COLOR_BayerRG2RGB_MHT = COLOR_BayerBG2BGR_MHT, cv::cuda::COLOR_BayerGR2RGB_MHT = COLOR_BayerGB2BGR_MHT, cv::cuda::COLOR_BayerBG2GRAY_MHT = 260, cv::cuda::COLOR_BayerGB2GRAY_MHT = 261, cv::cuda::COLOR_BayerRG2GRAY_MHT = 262, cv::cuda::COLOR_BayerGR2GRAY_MHT = 263 } |
Functions | |
void | cv::cuda::alphaComp (InputArray img1, InputArray img2, OutputArray dst, int alpha_op, Stream &stream=Stream::Null()) |
Composites two images using alpha opacity values contained in each image. More... | |
void | cv::cuda::cvtColor (InputArray src, OutputArray dst, int code, int dcn=0, Stream &stream=Stream::Null()) |
Converts an image from one color space to another. More... | |
void | cv::cuda::demosaicing (InputArray src, OutputArray dst, int code, int dcn=-1, Stream &stream=Stream::Null()) |
Converts an image from Bayer pattern to RGB or grayscale. More... | |
void | cv::cuda::gammaCorrection (InputArray src, OutputArray dst, bool forward=true, Stream &stream=Stream::Null()) |
Routines for correcting image color gamma. More... | |
void | cv::cuda::swapChannels (InputOutputArray image, const int dstOrder[4], Stream &stream=Stream::Null()) |
Exchanges the color channels of an image in-place. More... | |
void cv::cuda::alphaComp | ( | InputArray | img1, |
InputArray | img2, | ||
OutputArray | dst, | ||
int | alpha_op, | ||
Stream & | stream = Stream::Null() |
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Composites two images using alpha opacity values contained in each image.
img1 | First image. Supports CV_8UC4 , CV_16UC4 , CV_32SC4 and CV_32FC4 types. |
img2 | Second image. Must have the same size and the same type as img1 . |
dst | Destination image. |
alpha_op | Flag specifying the alpha-blending operation:
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stream | Stream for the asynchronous version. |
void cv::cuda::cvtColor | ( | InputArray | src, |
OutputArray | dst, | ||
int | code, | ||
int | dcn = 0 , |
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Stream & | stream = Stream::Null() |
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Converts an image from one color space to another.
src | Source image with CV_8U , CV_16U , or CV_32F depth and 1, 3, or 4 channels. |
dst | Destination image. |
code | Color space conversion code. For details, see cvtColor . |
dcn | Number of channels in the destination image. If the parameter is 0, the number of the channels is derived automatically from src and the code . |
stream | Stream for the asynchronous version. |
3-channel color spaces (like HSV, XYZ, and so on) can be stored in a 4-channel image for better performance.
void cv::cuda::demosaicing | ( | InputArray | src, |
OutputArray | dst, | ||
int | code, | ||
int | dcn = -1 , |
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Stream & | stream = Stream::Null() |
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Converts an image from Bayer pattern to RGB or grayscale.
src | Source image (8-bit or 16-bit single channel). |
dst | Destination image. |
code | Color space conversion code (see the description below). |
dcn | Number of channels in the destination image. If the parameter is 0, the number of the channels is derived automatically from src and the code . |
stream | Stream for the asynchronous version. |
The function can do the following transformations:
Demosaicing using bilinear interpolation
> - COLOR_BayerBG2GRAY , COLOR_BayerGB2GRAY , COLOR_BayerRG2GRAY , COLOR_BayerGR2GRAY > - COLOR_BayerBG2BGR , COLOR_BayerGB2BGR , COLOR_BayerRG2BGR , COLOR_BayerGR2BGR
Demosaicing using Malvar-He-Cutler algorithm ([73])
> - COLOR_BayerBG2GRAY_MHT , COLOR_BayerGB2GRAY_MHT , COLOR_BayerRG2GRAY_MHT , > COLOR_BayerGR2GRAY_MHT > - COLOR_BayerBG2BGR_MHT , COLOR_BayerGB2BGR_MHT , COLOR_BayerRG2BGR_MHT , > COLOR_BayerGR2BGR_MHT
void cv::cuda::gammaCorrection | ( | InputArray | src, |
OutputArray | dst, | ||
bool | forward = true , |
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Stream & | stream = Stream::Null() |
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Routines for correcting image color gamma.
src | Source image (3- or 4-channel 8 bit). |
dst | Destination image. |
forward | true for forward gamma correction or false for inverse gamma correction. |
stream | Stream for the asynchronous version. |
void cv::cuda::swapChannels | ( | InputOutputArray | image, |
const int | dstOrder[4], | ||
Stream & | stream = Stream::Null() |
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Exchanges the color channels of an image in-place.
image | Source image. Supports only CV_8UC4 type. |
dstOrder | Integer array describing how channel values are permutated. The n-th entry of the array contains the number of the channel that is stored in the n-th channel of the output image. E.g. Given an RGBA image, aDstOrder = [3,2,1,0] converts this to ABGR channel order. |
stream | Stream for the asynchronous version. |
The methods support arbitrary permutations of the original channels, including replication.