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Avoiding coloured pixels in text

조회 수: 1 (최근 30일)
Carl  Ionstion
Carl Ionstion 2019년 11월 14일
마감: MATLAB Answer Bot 2021년 8월 20일
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
  댓글 수: 2
Guillaume
Guillaume 2019년 11월 14일
편집: Guillaume 2019년 11월 14일
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
Carl Ionstion 2019년 11월 15일
I need it smoothed in monochrome because another program will use them and it's color based and it gets crazy.

답변 (3개)

KALYAN ACHARJYA
KALYAN ACHARJYA 2019년 11월 14일
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
  댓글 수: 2
Carl  Ionstion
Carl Ionstion 2019년 11월 14일
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
KALYAN ACHARJYA 2019년 11월 14일
If you could share the figure, it may help to illustrates easily.

Carl  Ionstion
Carl Ionstion 2019년 11월 14일
a.png
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);
  댓글 수: 1
Image Analyst
Image Analyst 2019년 11월 14일
What makes you think it's MATLAB doing it instead of the operating system or your video adapter?

Carl  Ionstion
Carl Ionstion 2019년 11월 15일
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.

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