OpenCV
4.5.0
Open Source Computer Vision
|
Functions | |
GMat | cv::gapi::BayerGR2RGB (const GMat &src_gr) |
Converts an image from BayerGR color space to RGB. The function converts an input image from BayerGR color space to RGB. The conventional ranges for G, R, and B channel values are 0 to 255. More... | |
GMat | cv::gapi::BGR2Gray (const GMat &src) |
Converts an image from BGR color space to gray-scaled. The conventional ranges for B, G, and R channel values are 0 to 255. Resulting gray color value computed as \[\texttt{dst} (I)= \texttt{0.114} * \texttt{src}(I).B + \texttt{0.587} * \texttt{src}(I).G + \texttt{0.299} * \texttt{src}(I).R \] . More... | |
GMat | cv::gapi::BGR2LUV (const GMat &src) |
Converts an image from BGR color space to LUV color space. More... | |
GMat | cv::gapi::BGR2YUV (const GMat &src) |
Converts an image from BGR color space to YUV color space. More... | |
GMat | cv::gapi::LUV2BGR (const GMat &src) |
Converts an image from LUV color space to BGR color space. More... | |
GMat | cv::gapi::NV12toBGR (const GMat &src_y, const GMat &src_uv) |
Converts an image from NV12 (YUV420p) color space to BGR. The function converts an input image from NV12 color space to RGB. The conventional ranges for Y, U, and V channel values are 0 to 255. More... | |
GMatP | cv::gapi::NV12toBGRp (const GMat &src_y, const GMat &src_uv) |
Converts an image from NV12 (YUV420p) color space to BGR. The function converts an input image from NV12 color space to BGR. The conventional ranges for Y, U, and V channel values are 0 to 255. More... | |
GMat | cv::gapi::NV12toGray (const GMat &src_y, const GMat &src_uv) |
Converts an image from NV12 (YUV420p) color space to gray-scaled. The function converts an input image from NV12 color space to gray-scaled. The conventional ranges for Y, U, and V channel values are 0 to 255. More... | |
GMat | cv::gapi::NV12toRGB (const GMat &src_y, const GMat &src_uv) |
Converts an image from NV12 (YUV420p) color space to RGB. The function converts an input image from NV12 color space to RGB. The conventional ranges for Y, U, and V channel values are 0 to 255. More... | |
GMatP | cv::gapi::NV12toRGBp (const GMat &src_y, const GMat &src_uv) |
Converts an image from NV12 (YUV420p) color space to RGB. The function converts an input image from NV12 color space to RGB. The conventional ranges for Y, U, and V channel values are 0 to 255. More... | |
GMat | cv::gapi::RGB2Gray (const GMat &src) |
Converts an image from RGB color space to gray-scaled. The conventional ranges for R, G, and B channel values are 0 to 255. Resulting gray color value computed as \[\texttt{dst} (I)= \texttt{0.299} * \texttt{src}(I).R + \texttt{0.587} * \texttt{src}(I).G + \texttt{0.114} * \texttt{src}(I).B \] . More... | |
GMat | cv::gapi::RGB2Gray (const GMat &src, float rY, float gY, float bY) |
GMat | cv::gapi::RGB2HSV (const GMat &src) |
Converts an image from RGB color space to HSV. The function converts an input image from RGB color space to HSV. The conventional ranges for R, G, and B channel values are 0 to 255. More... | |
GMat | cv::gapi::RGB2Lab (const GMat &src) |
Converts an image from RGB color space to Lab color space. More... | |
GMat | cv::gapi::RGB2YUV (const GMat &src) |
Converts an image from RGB color space to YUV color space. More... | |
GMat | cv::gapi::RGB2YUV422 (const GMat &src) |
Converts an image from RGB color space to YUV422. The function converts an input image from RGB color space to YUV422. The conventional ranges for R, G, and B channel values are 0 to 255. More... | |
GMat | cv::gapi::YUV2BGR (const GMat &src) |
Converts an image from YUV color space to BGR color space. More... | |
GMat | cv::gapi::YUV2RGB (const GMat &src) |
Converts an image from YUV color space to RGB. The function converts an input image from YUV color space to RGB. The conventional ranges for Y, U, and V channel values are 0 to 255. More... | |
#include <opencv2/gapi/imgproc.hpp>
Converts an image from BayerGR color space to RGB. The function converts an input image from BayerGR color space to RGB. The conventional ranges for G, R, and B channel values are 0 to 255.
Output image must be 8-bit unsigned 3-channel image CV_8UC3.
src_gr | input image: 8-bit unsigned 1-channel image CV_8UC1. |
#include <opencv2/gapi/imgproc.hpp>
Converts an image from BGR color space to gray-scaled. The conventional ranges for B, G, and R channel values are 0 to 255. Resulting gray color value computed as
\[\texttt{dst} (I)= \texttt{0.114} * \texttt{src}(I).B + \texttt{0.587} * \texttt{src}(I).G + \texttt{0.299} * \texttt{src}(I).R \]
.
src | input image: 8-bit unsigned 3-channel image CV_8UC1. |
#include <opencv2/gapi/imgproc.hpp>
Converts an image from BGR color space to LUV color space.
The function converts an input image from BGR color space to LUV. The conventional ranges for B, G, and R channel values are 0 to 255.
Output image must be 8-bit unsigned 3-channel image CV_8UC3.
src | input image: 8-bit unsigned 3-channel image CV_8UC3. |
#include <opencv2/gapi/imgproc.hpp>
Converts an image from BGR color space to YUV color space.
The function converts an input image from BGR color space to YUV. The conventional ranges for B, G, and R channel values are 0 to 255.
Output image must be 8-bit unsigned 3-channel image CV_8UC3.
src | input image: 8-bit unsigned 3-channel image CV_8UC3. |
#include <opencv2/gapi/imgproc.hpp>
Converts an image from LUV color space to BGR color space.
The function converts an input image from LUV color space to BGR. The conventional ranges for B, G, and R channel values are 0 to 255.
Output image must be 8-bit unsigned 3-channel image CV_8UC3.
src | input image: 8-bit unsigned 3-channel image CV_8UC3. |
#include <opencv2/gapi/imgproc.hpp>
Converts an image from NV12 (YUV420p) color space to BGR. The function converts an input image from NV12 color space to RGB. The conventional ranges for Y, U, and V channel values are 0 to 255.
Output image must be 8-bit unsigned 3-channel image CV_8UC3.
#include <opencv2/gapi/imgproc.hpp>
Converts an image from NV12 (YUV420p) color space to BGR. The function converts an input image from NV12 color space to BGR. The conventional ranges for Y, U, and V channel values are 0 to 255.
Output image must be 8-bit unsigned planar 3-channel image CV_8UC1. Planar image memory layout is three planes laying in the memory contiguously, so the image height should be plane_height*plane_number, image type is CV_8UC1.
src_y | input image: 8-bit unsigned 1-channel image CV_8UC1. |
src_uv | input image: 8-bit unsigned 2-channel image CV_8UC2. |
#include <opencv2/gapi/imgproc.hpp>
Converts an image from NV12 (YUV420p) color space to gray-scaled. The function converts an input image from NV12 color space to gray-scaled. The conventional ranges for Y, U, and V channel values are 0 to 255.
Output image must be 8-bit unsigned 1-channel image CV_8UC1.
#include <opencv2/gapi/imgproc.hpp>
Converts an image from NV12 (YUV420p) color space to RGB. The function converts an input image from NV12 color space to RGB. The conventional ranges for Y, U, and V channel values are 0 to 255.
Output image must be 8-bit unsigned 3-channel image CV_8UC3.
#include <opencv2/gapi/imgproc.hpp>
Converts an image from NV12 (YUV420p) color space to RGB. The function converts an input image from NV12 color space to RGB. The conventional ranges for Y, U, and V channel values are 0 to 255.
Output image must be 8-bit unsigned planar 3-channel image CV_8UC1. Planar image memory layout is three planes laying in the memory contiguously, so the image height should be plane_height*plane_number, image type is CV_8UC1.
src_y | input image: 8-bit unsigned 1-channel image CV_8UC1. |
src_uv | input image: 8-bit unsigned 2-channel image CV_8UC2. |
#include <opencv2/gapi/imgproc.hpp>
Converts an image from RGB color space to gray-scaled. The conventional ranges for R, G, and B channel values are 0 to 255. Resulting gray color value computed as
\[\texttt{dst} (I)= \texttt{0.299} * \texttt{src}(I).R + \texttt{0.587} * \texttt{src}(I).G + \texttt{0.114} * \texttt{src}(I).B \]
.
src | input image: 8-bit unsigned 3-channel image CV_8UC1. |
#include <opencv2/gapi/imgproc.hpp>
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Resulting gray color value computed as
\[\texttt{dst} (I)= \texttt{rY} * \texttt{src}(I).R + \texttt{gY} * \texttt{src}(I).G + \texttt{bY} * \texttt{src}(I).B \]
src | input image: 8-bit unsigned 3-channel image CV_8UC1. |
rY | float multiplier for R channel. |
gY | float multiplier for G channel. |
bY | float multiplier for B channel. |
#include <opencv2/gapi/imgproc.hpp>
Converts an image from RGB color space to HSV. The function converts an input image from RGB color space to HSV. The conventional ranges for R, G, and B channel values are 0 to 255.
Output image must be 8-bit unsigned 3-channel image CV_8UC3.
src | input image: 8-bit unsigned 3-channel image CV_8UC3. |
#include <opencv2/gapi/imgproc.hpp>
Converts an image from RGB color space to Lab color space.
The function converts an input image from BGR color space to Lab. The conventional ranges for R, G, and B channel values are 0 to 255.
Output image must be 8-bit unsigned 3-channel image CV_8UC1.
src | input image: 8-bit unsigned 3-channel image CV_8UC1. |
#include <opencv2/gapi/imgproc.hpp>
Converts an image from RGB color space to YUV color space.
The function converts an input image from RGB color space to YUV. The conventional ranges for R, G, and B channel values are 0 to 255.
In case of linear transformations, the range does not matter. But in case of a non-linear transformation, an input RGB image should be normalized to the proper value range to get the correct results, like here, at RGB \(\rightarrow\) Y*u*v* transformation. Output image must be 8-bit unsigned 3-channel image CV_8UC3.
src | input image: 8-bit unsigned 3-channel image CV_8UC3. |
#include <opencv2/gapi/imgproc.hpp>
Converts an image from RGB color space to YUV422. The function converts an input image from RGB color space to YUV422. The conventional ranges for R, G, and B channel values are 0 to 255.
Output image must be 8-bit unsigned 2-channel image CV_8UC2.
src | input image: 8-bit unsigned 3-channel image CV_8UC3. |
#include <opencv2/gapi/imgproc.hpp>
Converts an image from YUV color space to BGR color space.
The function converts an input image from YUV color space to BGR. The conventional ranges for B, G, and R channel values are 0 to 255.
Output image must be 8-bit unsigned 3-channel image CV_8UC3.
src | input image: 8-bit unsigned 3-channel image CV_8UC3. |
#include <opencv2/gapi/imgproc.hpp>
Converts an image from YUV color space to RGB. The function converts an input image from YUV color space to RGB. The conventional ranges for Y, U, and V channel values are 0 to 255.
Output image must be 8-bit unsigned 3-channel image CV_8UC3.
src | input image: 8-bit unsigned 3-channel image CV_8UC3. |