robotteam / javaphash

One JAVA version of PHash (Perceptual Hash) algorithm (JAVA 版本的 官方经典PHash算法)

One JAVA version of PHash (Perceptual Hash) algorithm (JAVA 版本的 PHash算法) 100%源自于C++ 的PHash (Perceptual Hash) algorithm 感知哈希算法 官网：https://www.phash.org/ 可以用于比较两张图片的相似程度 You can get the similarity between two images using this algorithm.

主函数入口：

com.tommy.main.Main

public class Main {

public static void main(String[] args) {
	
	Phash phash = new Phash();
	
	CImage imA=new CImage("D:\\cars\\temp\\3.jpg");// replace this with your own image path
	
	CImage imB=new CImage("D:\\cars\\temp\\4.jpg");// 替换成你自己的图片路径
	
	phash._ph_compare_images(imA, imB);
}

}

javaphash's Issues

info about CImgae constuctor

Hi
could you please explain why do you have used that bold number in the formula below?
why we need to use them?
tks

int j = 0;
for (int i = 0; i < bufferSize; i += numComponents) {
float y0 = ### ((tempData[i + 2] & 0xFF) * 25
+ (tempData[i + 1] & 0xFF) * 129 + (tempData[i] & 0xFF) * 66);

int y = Math.round(y0 / 256.0f) + 16;
if (y > 255)
y = 255;
if (y > maxPixel) {
maxPixel = y;
}
this.data[j] = (byte) y;
j++;