white balancing of opencv_extra module
if I use UMat , it is giving exception
error terminate called after throwing an instance of 'cv::Exception' what(): OpenCV(3.4.2) /home/u-16i/softwares/opencv/opencv/modules/core/src/matrix_wrap.cpp:1731: error: (-215:Assertion failed) k == MAT in function 'getMatRef',
but with Mat type, the code is having no issues. Any reason??
Mat src_mat;
UMat src_umat,resized,res;
float inputMIN= 0.1f;
float inputMAX= 0.1f;
float outputMIN= 0.1f;
float outputMAX= 0.1f;
float pcent_topbybottom =0.01f;
src_mat = imread("/home/u-16i/Pictures/wp/beach_flowers-wallpaper-1440x900.jpg");
if (src_mat.empty())
{
printf("Cannot read image file");
return -1;
}
src_mat.copyTo(src_umat);
resize(src_umat, resized, Size(), 0.29, 0.29, CV_INTER_AREA);
imshow("b4 white balance", resized);
Ptr<xphoto::SimpleWB> wb =xphoto::createSimpleWB();
inputMAX=wb->getInputMax();
cout<<"inputMAX-->t"<<inputMAX<<endl;
inputMIN=wb->getInputMin();
cout<<"inputMIN-->t"<<inputMIN<<endl;
outputMIN=wb->getOutputMin();
cout<<"outputMIN-->t"<<outputMIN<<endl;
outputMAX=wb->getOutputMax();
wb->setP(4.2);
cout<<"outputMAX-->t"<<outputMAX<<endl;
pcent_topbybottom =wb->getP();
cout<<"pcent_topbybottom-->t"<<pcent_topbybottom<<endl;
wb->balanceWhite(resized, res);
imshow("after white balance", res);
waitKey(0);
return 0;
opencv3.0 mat
add a comment |
if I use UMat , it is giving exception
error terminate called after throwing an instance of 'cv::Exception' what(): OpenCV(3.4.2) /home/u-16i/softwares/opencv/opencv/modules/core/src/matrix_wrap.cpp:1731: error: (-215:Assertion failed) k == MAT in function 'getMatRef',
but with Mat type, the code is having no issues. Any reason??
Mat src_mat;
UMat src_umat,resized,res;
float inputMIN= 0.1f;
float inputMAX= 0.1f;
float outputMIN= 0.1f;
float outputMAX= 0.1f;
float pcent_topbybottom =0.01f;
src_mat = imread("/home/u-16i/Pictures/wp/beach_flowers-wallpaper-1440x900.jpg");
if (src_mat.empty())
{
printf("Cannot read image file");
return -1;
}
src_mat.copyTo(src_umat);
resize(src_umat, resized, Size(), 0.29, 0.29, CV_INTER_AREA);
imshow("b4 white balance", resized);
Ptr<xphoto::SimpleWB> wb =xphoto::createSimpleWB();
inputMAX=wb->getInputMax();
cout<<"inputMAX-->t"<<inputMAX<<endl;
inputMIN=wb->getInputMin();
cout<<"inputMIN-->t"<<inputMIN<<endl;
outputMIN=wb->getOutputMin();
cout<<"outputMIN-->t"<<outputMIN<<endl;
outputMAX=wb->getOutputMax();
wb->setP(4.2);
cout<<"outputMAX-->t"<<outputMAX<<endl;
pcent_topbybottom =wb->getP();
cout<<"pcent_topbybottom-->t"<<pcent_topbybottom<<endl;
wb->balanceWhite(resized, res);
imshow("after white balance", res);
waitKey(0);
return 0;
opencv3.0 mat
add a comment |
if I use UMat , it is giving exception
error terminate called after throwing an instance of 'cv::Exception' what(): OpenCV(3.4.2) /home/u-16i/softwares/opencv/opencv/modules/core/src/matrix_wrap.cpp:1731: error: (-215:Assertion failed) k == MAT in function 'getMatRef',
but with Mat type, the code is having no issues. Any reason??
Mat src_mat;
UMat src_umat,resized,res;
float inputMIN= 0.1f;
float inputMAX= 0.1f;
float outputMIN= 0.1f;
float outputMAX= 0.1f;
float pcent_topbybottom =0.01f;
src_mat = imread("/home/u-16i/Pictures/wp/beach_flowers-wallpaper-1440x900.jpg");
if (src_mat.empty())
{
printf("Cannot read image file");
return -1;
}
src_mat.copyTo(src_umat);
resize(src_umat, resized, Size(), 0.29, 0.29, CV_INTER_AREA);
imshow("b4 white balance", resized);
Ptr<xphoto::SimpleWB> wb =xphoto::createSimpleWB();
inputMAX=wb->getInputMax();
cout<<"inputMAX-->t"<<inputMAX<<endl;
inputMIN=wb->getInputMin();
cout<<"inputMIN-->t"<<inputMIN<<endl;
outputMIN=wb->getOutputMin();
cout<<"outputMIN-->t"<<outputMIN<<endl;
outputMAX=wb->getOutputMax();
wb->setP(4.2);
cout<<"outputMAX-->t"<<outputMAX<<endl;
pcent_topbybottom =wb->getP();
cout<<"pcent_topbybottom-->t"<<pcent_topbybottom<<endl;
wb->balanceWhite(resized, res);
imshow("after white balance", res);
waitKey(0);
return 0;
opencv3.0 mat
if I use UMat , it is giving exception
error terminate called after throwing an instance of 'cv::Exception' what(): OpenCV(3.4.2) /home/u-16i/softwares/opencv/opencv/modules/core/src/matrix_wrap.cpp:1731: error: (-215:Assertion failed) k == MAT in function 'getMatRef',
but with Mat type, the code is having no issues. Any reason??
Mat src_mat;
UMat src_umat,resized,res;
float inputMIN= 0.1f;
float inputMAX= 0.1f;
float outputMIN= 0.1f;
float outputMAX= 0.1f;
float pcent_topbybottom =0.01f;
src_mat = imread("/home/u-16i/Pictures/wp/beach_flowers-wallpaper-1440x900.jpg");
if (src_mat.empty())
{
printf("Cannot read image file");
return -1;
}
src_mat.copyTo(src_umat);
resize(src_umat, resized, Size(), 0.29, 0.29, CV_INTER_AREA);
imshow("b4 white balance", resized);
Ptr<xphoto::SimpleWB> wb =xphoto::createSimpleWB();
inputMAX=wb->getInputMax();
cout<<"inputMAX-->t"<<inputMAX<<endl;
inputMIN=wb->getInputMin();
cout<<"inputMIN-->t"<<inputMIN<<endl;
outputMIN=wb->getOutputMin();
cout<<"outputMIN-->t"<<outputMIN<<endl;
outputMAX=wb->getOutputMax();
wb->setP(4.2);
cout<<"outputMAX-->t"<<outputMAX<<endl;
pcent_topbybottom =wb->getP();
cout<<"pcent_topbybottom-->t"<<pcent_topbybottom<<endl;
wb->balanceWhite(resized, res);
imshow("after white balance", res);
waitKey(0);
return 0;
opencv3.0 mat
opencv3.0 mat
asked Jan 1 at 4:54
indr0indr0
245
245
add a comment |
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53993093%2fwhite-balancing-of-opencv-extra-module%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53993093%2fwhite-balancing-of-opencv-extra-module%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown