CODEWITHSUNDEEP
javaimagej
Stefan
Stefan

Reputation: 1

IMAGEJ: convert an existing ImageProcessor picture (RGB) into an 8-Bit Grayvalue

I am a beginner and want to convert an existing ImageProcessor picture (RGB) into an 8-Bit Grayvalue Picture (in ImageJ).

I tried different things but nothing worked:

ImageProcessor binaer = copy.getProcessor().convertToByte(false);

...Doesn't work

..so I wanted to Change Processor Type from ImageProcessor to ImagePlus..

ImagePlus imp = copy.getProcessor();

But this also didn't work.

I found this in the WEB:

import ij.ImagePlus; import ij.process.ImageConverter;

// ...

ImagePlus imp = IJ.getImage();

ImageConverter ic = new ImageConverter(imp);

ic.convertToGray8();

imp.updateAndDraw();

But I don't want to work with the original Picture, I want to work with the edited ImageProcessor picture .

Can somebody please help me out

Upvotes: 0

Views: 639

Answers (1)

FiReTiTi
FiReTiTi

Reputation: 5878

Are you sure that copy.getProcessor().convertToByte(false); didn't work? Because when I look into the ImageProcessor code, here is what I find:

public ImageProcessor convertToByte(boolean doScaling)
    {
    TypeConverter tc = new TypeConverter(this, doScaling);
    return tc.convertToByte();
    }

I did the test on my computer, and it worked fine. The RGB image was properly converted to gray level with 8 bits encoding.

What exactly do you expect? What are you trying to do? Do you want a binary image?

Upvotes: 1

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