Convert from RGB TO HSB in java

java rgb bufferedimage hsb
user2080806 picture user2080806 · Feb 17, 2013 · Viewed 8.2k times · Source

I am trying to find the average colour in a picture, and convert the colours to HSB.

I am using a bufferedImage and the list function, and I have found the colours red, green and blue in each pixel.

Can anyone give me some tips on how to convert to HSB in java? :)

Answer

StatsTrade picture StatsTrade · Feb 17, 2013

Use java.awt.Color.RGBtoHSB(int r, int g, int b, float[] hsbvals). See javadoc here.

P.S. If you use p = bufferedImage.getRGB(x,y), recall that the lowest 8 bits (myPixel&0xff) correspond to the blue component, so you may use something like: Color.RGBtoHSB((p>>16)&0xff, (p>>8)&0xff, p&0xff, hsbvals).

Related questions

Understanding BufferedImage.getRGB output values

I'm getting an integer value for the pixel in an image using this method: int colour = img.getRGB(x, y); Then I'm printing out the values and I see that black pixels correspond to a value like "-16777216", a kind …

Read More
bufferedImage.getRGB(x, y) does not yield alpha

I've got a BufferedImage i and I'd like to get the Color from a certain pixel of that image including the alpha value. The pixel is identified using x and y coordinates. Here's what I tried: Color c = new Color(…

Read More
How to flip BufferedImage in java

I get RGB24 byte array and want to show it in Java. public void getByteArray(byte byteArray[]){ int count1 = 0; byte temp1 = 0; for (int i = 0; i < byteArray.length; i++) { //The order of RGB24 is red,green and blue.Change the //…

Read More