Color coding in XML files

[Fernando Pérez-García]

Dear Icy experts,

We're using Icy to trace contours on histology slices. We then save the ROIs as an XML file and then we read them somewhere else. We'd like to keep the coherence between the colors used on Icy and the ones we'll show later. However, the "color" element of the ROI in the XML file looks like "-16711936". I expected some hex or rgb format, I don't know what that number means.

Can you help me?

Thanks in advance,

Fernando

[Jerome Mutterer]

Hi Fernando,

Colors in the XML file are saved as signed integers. You can recover R,G and B values from the color value using eg this IJ macro snippet:

c = (-16711936) & 0xFFFFFF;
r = (c>>16)&0xFF;
g = (c>>8)&0xFF;
b = c & 0xFF;
print (r,g,b);

Sincerely,

Jerome.

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Jerome Mutterer

CNRS - Institut de biologie moléculaire des plantes

12, rue du Général Zimmer

67084 Strasbourg Cedex

www.ibmp.cnrs.fr

[Fernando Pérez-García]

Bonsoir Jerome,

Thanks for your quick response. Your answer solved my problem.

Best,

Fernando