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added filter fade

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lostjared
2018-03-19 11:14:11 -07:00
parent a838567a4f
commit 79728c1334
8 changed files with 444 additions and 2 deletions
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34
src/playback_thread.cpp
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@@ -13,6 +13,8 @@ Playback::Playback(QObject *parent) : QThread(parent) {
isPaused = false;
bright_ = gamma_ = saturation_ = 0;
single_mode = true;
alpha = 0;
prev_filter = std::pair<int, int>(0, 0);
}
void Playback::Play() {
@@ -111,7 +113,9 @@ void Playback::setColorOptions(int b, int g, int s) {
}
void Playback::setIndexChanged(std::string value) {
prev_filter = current_filter;
current_filter = filter_map[value];
alpha = 1.0;
}
void Playback::setSingleMode(bool val) {
@@ -180,7 +184,11 @@ void Playback::run() {
cur = current;
mutex_shown.unlock();
ac::orig_frame = frame.clone();
if(single_mode == true) {
if(single_mode == true && alpha > 0) {
filterFade(frame, current_filter, prev_filter, alpha);
alpha -= 0.08;
} else if(single_mode == true) {
mutex.lock();
ac::in_custom = false;
drawFilter(frame, current_filter);
@@ -238,6 +246,8 @@ Playback::~Playback() {
void Playback::Stop() {
stop = true;
alpha = 0;
prev_filter = std::pair<int, int>(0, 0);
}
void Playback::Release() {
@@ -268,3 +278,25 @@ void Playback::setImage(const cv::Mat &frame) {
blend_image = frame;
mutex.unlock();
}
void Playback::filterFade(cv::Mat &frame, std::pair<int, int> &filter1, std::pair<int, int> &filter2, double alpha) {
unsigned int h = frame.rows; // frame height
unsigned int w = frame.cols;// framew idth
// make copies of original frame
cv::Mat frame1 = frame.clone(), frame2 = frame.clone();
// apply filters on two copies of original frame
drawFilter(frame1,filter1);
drawFilter(frame2,filter2);
// loop through image setting each pixel with alphablended pixel
for(unsigned int z = 0; z < h; ++z) {
for(unsigned int i = 0; i < w; ++i) {
cv::Vec3b &pixel = frame.at<cv::Vec3b>(z, i); // target pixel
cv::Vec3b frame1_pix = frame1.at<cv::Vec3b>(z, i); // frame1 pixel
cv::Vec3b frame2_pix = frame2.at<cv::Vec3b>(z, i); // frame2 pixel
// loop through pixel components and set target pixel to alpha blended pixel of two frames
for(unsigned int q = 0; q < 3; ++q)
pixel[q] = frame2_pix[q]+(frame1_pix[q]*alpha);
}
}
}