Avoiding coloured pixels in text

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Hello

When I add text to a graph, text color is not perfect. For example, if it's blue, when you zoom it there are small orange pixels.

How can I avoid this or change this colormap?

Thanks

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Guillaume 2019-11-14

编辑：Guillaume 2019-11-14

That's the typical behaviour of antialising and is performed so that the edges of the text appear smooth. Why is this a problem anyway?

Carl Ionstion 2019-11-15

I need it smoothed in monochrome because another program will use them and it's color based and it gets crazy.

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Answer 1

KALYAN ACHARJYA 2019-11-14

在 MATLAB Online 中打开

0 个投票

Chnage the color of Text, there are multiple features to change the color of the text

RGB = insertText(I,position,text_str,'FontSize',18,'BoxColor',box_color,'BoxOpacity',0.4,'TextColor','white');

Detail here

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Carl Ionstion 2019-11-14

Thanks, but the problem is the same, when you zoom the image the colormap used for the text is full of pastel colors and, even if you are using the "blue" color, zooming to a pixel level shows it. I need to change the colorpam used for dithering the text.

KALYAN ACHARJYA 2019-11-14

If you could share the figure, it may help to illustrates easily.

Answer 2

Carl Ionstion 2019-11-14

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Sure. As you can see, when you zoom it it's like a disco.

text(0.02 , 0.5 , 'E.On: Electric Water'] , 'FontSize', 8, 'FontWeight','bold','FontName','Century Gothic', 'Color',double([20 35 124])/255);

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Image Analyst 2019-11-14

What makes you think it's MATLAB doing it instead of the operating system or your video adapter?

Answer 3

Carl Ionstion 2019-11-15

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Probably is has something to do with the operating system, but since there are programs that do that like Matlab and R and programs that don't do that, like Excel, there must be a way to solve it.

Avoiding coloured pixels in text

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