Tracing a bitmap image
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I'm trying to trace a bitmap image (png file) but despite numerous attempts, I can't manage to avoid having these fine white lines everywhere, even though there aren't any in the original image.
I'm certainly not applying the right settings, but there are plenty of parameters to test nonetheless. Any ideas/tips on how to avoid this while preserving the nuances of the original image? Thanks
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@Pat This is caused by the anti-aliasing when rendering touching shapes.
The anti-aliasing can be disabled in View -> Subpixel by selecting None. -
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@VectorStyler said in Tracing a bitmap image:
@Pat This is caused by the anti-aliasing when rendering touching shapes.
The anti-aliasing can be disabled in View -> Subpixel by selecting None.These lines disappear in the viewer window but, as I suspected, they are always present in an exported file (jpeg or pdf).
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@Pat said in Tracing a bitmap image:
These lines disappear in the viewer window but, as I suspected, they are always present in an exported file (jpeg or pdf).
In the Export panel, try to turn off the Smoothing by selecting "None".
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@Harry Thanks
It helps for jpeg/png files but I didn't see this option for pdf (except "smooth gradient" but I didn't expect it to be the same feature)... & jpeg/png quality is clearly not there yet after tracing.I guess I'll have to play with it a bit more but here are so many options to test...
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@Pat said in Tracing a bitmap image:
didn't see this option for pdf
this option is not needed for PDF, as it should output vectors
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@Pat Is this a PDF file? what app was used to display it?
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@VectorStyler Adobe Acrobat DC (2015).
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@Pat Send me the VS file and the PDF file by email. I need to replicate this here to find out what can cause this.
Some apps render anti-aliasing with this kind of artifacts (VS and AD also), but the Adobe tools should have a different vector rendering scheme.
Unless an image was output into the PDF by VS. -
@VectorStyler As I've recently re-subscribed to Adobe CC, I've just installed the latest version of Acrobat DC: the lines are there when I open the file, but after a few seconds they disappear. Should I still send the files?
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@Pat said in Tracing a bitmap image:
Should I still send the files?
Still send me the files. I would like check if the export is vectors and if it is touching shapes indeed.
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@VectorStyler Files sent
