Hi! I have a UInt8 matrix of 512 lines by 2048 columns where the elements can only take on the values 0x00, 0x01, 0x02, 0x03, 0x04, 0xfd, 0xfe or 0xff. I’d like to visualize this matrix as a color map, ideally in PNG or PDF format, where matrix elements == 0x00 become red pixels matrix elements =…

You should read the JuliaImages documentation , it will walk you through all these steps. It describes several visualization packages as well as the use of FileIO & ImageIO to save PNG files.

Colorizing a UInt8 matrix

New to Julia

tim.holy May 23, 2023, 10:08am 7

using FileIO, ImageIO should solve that.

1 Like

New user of Images.jl ... trouble saving grayscale PNG

Topic		Replies	Views
Efficient xor cursor ... in color? General Usage images , array , type	1	509	June 13, 2022
Heatmap: Assign colors to discrete values New to Julia	32	2820	October 5, 2020
Export/import color matrix New to Julia colors , import-data	1	557	April 22, 2022
Converting from 24-bit image as byte array to RGB Visualization question	3	1246	November 9, 2020
Change float into color or change array of Floats into colormap General Usage question , package , plotting , performance , colors	2	1459	June 3, 2019

Colorizing a UInt8 matrix

Related topics