preserving RGB color quality from heatmap figures during exporting

11 次查看（过去 30 天）

hxen 2021-6-22

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/862750-preserving-rgb-color-quality-from-heatmap-figures-during-exporting

回答： hxen 2021-6-28

I wish to export in RGB heatmaps that were created using imagesc and pcolor for output. The MATLAB .fig outputs look beautiful using the "jet" color map. However, regardless of the format type (.svg, .eps, .png, etc.) the colors get blunted with the blues becoming more purplish and reds and oranges shifted more to the yellow spectrum. This still occurs despite setting/using the export feature in the figure menu to output in RGB. Ultimately, I wish to import the colormaps into adobe illustrator for figure making purposes. Only when I switch to CMYK in Adobe do the colors somewhat return to how it appeared in the original MATLAB figure, but the hues are much less vibrant and dulled. I didn't have this issue previously until recently updating MATLAB and cannot find any information how to bypass this issue. I'm using MATLAB 2020b and using a Mac.

How can I preserve in any graphical export type the same RGB color quality from the original heatmap figure?

Thank you for any help or suggestions.

%Code generating figure: 
T = imagesc(pts, pts, conv2(N, g, 'same'));
figure, pcolor(T.CData);
shading(gca,'interp');
colormap(jet(4096));

8 个评论
显示 6更早的评论隐藏 6更早的评论

Image Analyst 2021-6-23

Can you post a screenshot of the image side by side in MATLAB and Adobe Illustrator?

hxen 2021-6-24

Hi. I did in the above comment. You can find the attachment here: https://www.mathworks.com/matlabcentral/answers/862750-preserving-rgb-color-quality-from-heatmap-figures-during-exporting#comment_1598595

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Image Analyst 2021-6-23

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/862750-preserving-rgb-color-quality-from-heatmap-figures-during-exporting#answer_730970

Did you try exportgraphics()

2 个评论
显示无隐藏无

hxen 2021-6-23

Thank you for the suggestion! Will give it a try. :)

hxen 2021-6-23

Unfortunately, it did not work. The strange shift with bloue hues stil persists. I am more convinced this is a Mac OS issue with Illustrator. I can open the exported maps using FiJi. I am going to reach out to Adobe. Thank you all for your time and help.

请先登录，再进行评论。

更多回答（1 个）

hxen 2021-6-28

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/862750-preserving-rgb-color-quality-from-heatmap-figures-during-exporting#answer_735160

Just wanted to follow up. I learned that the issue was a Mac OS new update related problem that reset Adobe Cloud settings. This was during the last MATLAB update I had done. It seems many have this issue after updating Adobe, which is easily solved by resetting the color settings under the Edit menu. Anyone reading this have having this issue might find this helpfu for importing any plots into Adobe: https://helpx.adobe.com/acrobat/using/keeping-colors-consistent.html

Thank you all again for your time.