Home/ Questions/Q 594651
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-13T15:58:36+00:00

I use an interface of RenderedImage for reading a tif image. How can I

  • 0

I use an interface of RenderedImage for reading a tif image.
How can I get all rgb values of this picture in a 2d-Array like this:

red[0][128] = 120; // means x=0, y=128, red value = 120
// the value 120 is the value I have to determine (and oall other rgb values)!

Does anyone know this?

Thanks a lot for your help!

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    getData() returns a Raster, which has a getData() method.

    Can you call YourRenderedImage.getData().getPixel(int x, int y, int iArray[]) to get your RGB values?

    JavaDoc: Returns the samples in an array of int for the specified pixel. An ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

    Raster.getPixel() – JavaDoc

    I believe the elements returned by the int array represent: Red, Green, Blue, Alpha, and Hex key, but I don’t know for sure.

    • 0