PImage img;
void setup(){
size(345, 567);
// The image file must be in the data folder of the current sketch
// to load successfully
img = loadImage("buzz3.jpg"); // Load the image into the program
}
void draw(){
// display the image at its actual size at point(0,0)
image(img, 0, 0);
// Displays the image at point(0, height/2) at half of its size
// image(img, 0, height/2, img.width/2, img.height/2);
}
openCV
here you can download
http://opencv.org/releases.html
http://opencv.jp/
in python-openCV
import cv2
img = cv2.imread('input.png')
cv2.imwrite('output.png', img)
img = imread('input.png')
imwrite('output.png', img)
imshow(img)
imageinfo('input.png')
help images