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Image Processing examples for 2.0

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Casey Reas
2011-09-16 06:08:57 +00:00
parent 472fd13b2f
commit dabdffc1dd
7 changed files with 36 additions and 32 deletions
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java/examples/Topics/Image Processing/Histogram/Histogram.pde
+4 -4
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@@ -12,13 +12,13 @@
// @pjs preload must be used to preload media if the program is
// running with Processing.js
/* @pjs preload="moon.jpg"; */
/* @pjs preload="frontier.jpg"; */
size(200, 200);
size(640, 360);
// Load an image from the data directory
// Load a different image by modifying the comments
PImage img = loadImage("cdi01_g.jpg");
PImage img = loadImage("frontier.jpg");
image(img, 0, 0);
int[] hist = new int[256];
@@ -36,7 +36,7 @@ int histMax = max(hist);
stroke(255);
// Draw half of the histogram (skip every second value)
for (int i = 0; i < img.width; i += 2) {
// Map i (from 0..img.width-1) to a location in the histogram (0..255)
// Map i (from 0..img.width) to a location in the histogram (0..255)
int which = int(map(i, 0, img.width, 0, 255));
// Convert the histogram value to a location between
// the bottom and the top of the picture