jpeg to vector double lines
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Re: jpeg to vector double lines
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Last edited by dave gangster on Sun Jan 13, 2019 9:44 pm, edited 1 time in total.
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Re: jpeg to vector double lines
Hi Martin thanks for your reply. The plans are very good quality but the problem is when i take a photo of them and bring it to aspire. I have now drawn it in aspire but still don't understand why the double lines from the photo. Thanks again for your help all the best Dave.
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Re: jpeg to vector double lines
Mike gave you the explanation:dave gangster wrote:still don't understand why the double lines from the photo
As your line has a width, there is a color change at each border so 2 vectors. Some software has a centerline option: they detect the line width and trace a central vector. But unfortunately Vectric products don't have this feature.FixitMike wrote:The trace tool draws a line wherever there is a change in color.
Best regards
Didier
W7 - Aspire 8.517
Didier
W7 - Aspire 8.517
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Re: jpeg to vector double lines
Ok thanks Dave.
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Re: jpeg to vector double lines
Dave, I was looking at the bitmap in your original post, if you look at it closely it is not a very good image at all, from that image I would not expect to get a very good trace at all
Taking a photo of any image you want to auto trace can be problomatic, lighting, camera flash, shadowing all play a part & what on paper are solid black lines become shades of grey to any bitmap trace program. If you aren't perfectly square to the image when you take a photo you will also get a degree of distortion so the plans may not be 100% accurate
You would be better scanning if that is an option, if not then when photographing do everything you can to eliminate any possible problems. Don't save the images as a jpeg file, use something like BMP or tiff as these will retain a lot more of the pictures colour imformation.
I don't know how much you have used inkscape but there is a centreline trace for inkscape, it doesn't install with the main program it is one of the add ons you have to download & install. I don't use the program myself but know people who do
Taking a photo of any image you want to auto trace can be problomatic, lighting, camera flash, shadowing all play a part & what on paper are solid black lines become shades of grey to any bitmap trace program. If you aren't perfectly square to the image when you take a photo you will also get a degree of distortion so the plans may not be 100% accurate
You would be better scanning if that is an option, if not then when photographing do everything you can to eliminate any possible problems. Don't save the images as a jpeg file, use something like BMP or tiff as these will retain a lot more of the pictures colour imformation.
I don't know how much you have used inkscape but there is a centreline trace for inkscape, it doesn't install with the main program it is one of the add ons you have to download & install. I don't use the program myself but know people who do
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Re: jpeg to vector double lines
Hi Martin thanks for the reply, The original pic is good quality but the photo let me down, have got inkscape will look for the add on thanks Dave.
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Re: jpeg to vector double lines
For this particular image, trace it by hand.
unfortunately, Vectric's image tracing is pretty rudimentary.
The best solution for more complex images is to use a program like Vector Magic or Graphic Tracer to convert images to vectors. They are pretty sophisticated, and can save many, many hours of hand tracing. Not cheap, but then again, you get what you pay for.
My $0.02
unfortunately, Vectric's image tracing is pretty rudimentary.
The best solution for more complex images is to use a program like Vector Magic or Graphic Tracer to convert images to vectors. They are pretty sophisticated, and can save many, many hours of hand tracing. Not cheap, but then again, you get what you pay for.
My $0.02
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Re: jpeg to vector double lines
Thank you will have a look at them Dave.