Difference between revisions of "KIAS primer"

From Cinemachines
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== Basic Image Processing ==
 
== Basic Image Processing ==
 
=== Displaying an Image ===
 
=== Displaying an Image ===
<nowiki><pre>for( int y = 0; y < h; y++ ) {
+
<nowiki><pre>for( int y = 0; y < h; y++ ) {
 
for( int x = 0; x < w; x++ ) {
 
for( int x = 0; x < w; x++ ) {
 
dist.at<Vec3b>(y,x)[0] = sources[1].at<Vec3b>(y,x)[0];
 
dist.at<Vec3b>(y,x)[0] = sources[1].at<Vec3b>(y,x)[0];
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where h = screen height, w = screen width and sources[1] = input
 
where h = screen height, w = screen width and sources[1] = input
 +
 +
=== Mirror image ===
 +
dist.at<Vec3b>(y,x)[0] = sources[1].at<Vec3b>(y,(w-x))[0];
 +
dist.at<Vec3b>(y,x)[1] = sources[1].at<Vec3b>(y,(w-x))[1];
 +
dist.at<Vec3b>(y,x)[2] = sources[1].at<Vec3b>(y,(w-x))[2];

Revision as of 11:19, 27 October 2019

Basic Image Processing

Displaying an Image

<pre>for( int y = 0; y < h; y++ ) {
	for( int x = 0; x < w; x++ ) {
		dist.at<Vec3b>(y,x)[0] = sources[1].at<Vec3b>(y,x)[0];
		dist.at<Vec3b>(y,x)[1] = sources[1].at<Vec3b>(y,x)[1];
		dist.at<Vec3b>(y,x)[2] = sources[1].at<Vec3b>(y,x)[2];
	}
}</pre>

where h = screen height, w = screen width and sources[1] = input

Mirror image

dist.at<Vec3b>(y,x)[0] = sources[1].at<Vec3b>(y,(w-x))[0]; dist.at<Vec3b>(y,x)[1] = sources[1].at<Vec3b>(y,(w-x))[1]; dist.at<Vec3b>(y,x)[2] = sources[1].at<Vec3b>(y,(w-x))[2];