MATLAB: Can’t I print a color figure in black and white with a white background in MATLAB 6.5 (R13)

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Why can't I print a color figure in black and white with a white background in MATLAB 6.5 (R13)?

I have a color figure that I want to print in black and white with a white background, but when I go to print it, both the print preview and the printout has my figure in color with a gray background. I specifically set "Figure window printing" to "Always send as black and white" and checked that the "Lines and text" was set to "Black and white" in the Page Setup dialog box, but I still get a color figure. (I have also checked that in the Page Setup dialog box for "Axes and Figure" that I choose "Force white background" and that InvertHardCopy was set to On, but I still get a gray background when I print and in the Print Preview window.)

How do I create a black and white figure with a white background?

Best Answer

This bug has been fixed in Release 14 Service Pack 3 (R14SP3). For previous product releases, read below for any possible workarounds:

This behavior has been forwarded to our development staff for further investigation.

As a workaround, you can try to explicitly change the properties of your printer, so the figure prints in black and white. From the figure, choose File -- > Print -- > Properties -- > Color (Choose as appropriate).

Related Solutions

MATLAB: When printing a Stateflow chart, why do I receive a black background instead of a white background

This bug has been fixed in Release 14 Service Pack 3 (R14SP3). For previous product releases, read below for any possible workarounds:

This is a bug in Stateflow when printing charts with white backgrounds.

There are no workarounds; however, other color backgrounds do not demonstrate this behavior. You could try using a different light colored background.

MATLAB: Black and white image

Try this

[counts, grayLevels] = imhist(grayImage, 256);
if sum(counts(2:end-1)) > 0
  % It's not pure black and white
end
% Get map of non-0 and non-255 pixels
grayPixels = grayImage > 0 & grayImage < 255;
% Get pure black and white image
bw = grayImage; % Initialize

bw(grayPixels) = 0; % Zero out any gray pixels.
% Get gray pixels only
grayOnly = grayImage; % Initialize
grayOnly(~grayPixels) = 0; % Zero out any pure 0 or pure 255 pixels.

Best Answer

Related Solutions

MATLAB: When printing a Stateflow chart, why do I receive a black background instead of a white background

MATLAB: Black and white image

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