Convert chart.ToImage chart to 8bpp

Aspose.Cells Product Family
1

Can someone help me out with some code which will convert the 32bpp images generated with chart.ToImage into 8bpp Indexed format? Or is there a way to output the image in 8bpp Index format using chart.ToImage?


I have tried using what I know with System.Drawing, but I can’t seem to get it to work correctly.

Thanks,
Mike
2

Hi Mike,

Thank you for considering Aspose.

We will look into your requirement and get back to you soon.

Thank You & Best Regards,

3

What would be perfect is if chart.ToImage could output in 8bpp png format and maintain the transparency you get when you export a pie chart with the background set to ‘None’.


Right now, the transparency is maintained correctly when exporting the chart to a normal png or emf file, but for a really lame reason I have to have this image in 8bpp png format.

I would think (hope) that this would be fairly trivial for you guys to implement as you are just using the GDI+ libraries…so there could be an overload to chart.ToImage that takes a PixelFormat enum value. Is this possible to do?

Thanks,
Mike Gates
4

Hi Mike,

Thank you for providing further details about your requirements, We will look into your requirements and get back to you soon.

Thank You & Best Regards,