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Render RGB text over RGB or Grayscale Image

version 1.2.0.0 (3.83 KB) by Davide Di Gloria
Utility which renders text over RGB o grayscale image matrices. (no line feed support)

1.2K Downloads

Updated 05 May 2010

View License

by Davide Di Gloria
with the great contribution of Franz-Gerold Url

Render RGB text over RGB or grayscale images of ANY RESOLUTION!

usage:
out=rendertext(target, text, color, pos, mode1, mode2)

target ... MxNx3 or MxN matrix
text ... string (NO LINE FEED SUPPORT)
color ... vector in the form [r g b] 0-255
pos ... position (r,c)

optional arguments: (default is 'ovr','left')
mode1 ... 'ovr' to overwrite, 'bnd' to blend text over image
mode2 ... text aligment 'left', 'mid' or 'right'.

out ... has same size of target

example (generates the sceenshot above):

in=imread('football.jpg');
out=rendertext(in,'OVERWRITE mode',[0 255 0], [1, 1]);
out=rendertext(out,'BLEND mode',[255 0 255], [30, 1], 'bnd', 'left');
out=rendertext(out,'left',[0 0 255], [101, 150], 'ovr', 'left');
out=rendertext(out,'mid',[0 0 255], [130, 150], 'ovr', 'mid');
out=rendertext(out,'right',[0 0 255], [160, 150], 'ovr', 'right');
imshow(out

have fun (and give credit)!

Cite As

Davide Di Gloria (2021). Render RGB text over RGB or Grayscale Image (https://www.mathworks.com/matlabcentral/fileexchange/26940-render-rgb-text-over-rgb-or-grayscale-image), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2009a
Compatible with any release
Platform Compatibility
Windows macOS Linux

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