Every once in a while, I encounter an image for which I’d like to generate a corresponding pencil sketch. Usually, applying an edge transformation (Roberts (or sometimes Sobel), HSV) followed by converting to the negative is a good step in that direction. However, that approach tends to yield excessive line widths and densities at high contrast boundaries. I have tried both selective and nonselective approaches to modifying both the original image and the “pencil sketch”, but have not found a satisfactory PWP method.
Any suggestions?
pencil sketch
Moderator: jsachs
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Texture mask?
Have you tried a Texture mask? You can start by putting the white and black carat sliders near each other around a point where the histogram falls to near zero. Gray | Negative the mask.
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- Posts: 227
- Joined: November 24th, 2009, 2:00 am
- What is the make/model of your primary camera?: Fuji X-Pro 2
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Re: pencil sketch
This texture mask, the sliders admitting a wider region than described in previous post,
http://www.dpreview.com/galleries/62576 ... ad/2524407
produced this result
http://www.dpreview.com/galleries/62576 ... ad/2524408
http://www.dpreview.com/galleries/62576 ... ad/2524407
produced this result
http://www.dpreview.com/galleries/62576 ... ad/2524408
Re: pencil sketch
Thanks, Charles. I can see where that might work well. [Maybe it's time for me to upgrade both my computer and PWP (from 3.5):)]
Bob Coutant
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Re: pencil sketch
Hi,Charles2 wrote:This texture mask, the sliders admitting a wider region than described in previous post,
http://www.dpreview.com/galleries/62576 ... ad/2524407
produced this result
http://www.dpreview.com/galleries/62576 ... ad/2524408
I tried to check out the photos using your links; on DPR website, got a message that the images are private... Help!?
Don Hirst
Canon 70D, 17-40L, 24-105L, 100-400L
Canon G10, G7x
Canon 70D, 17-40L, 24-105L, 100-400L
Canon G10, G7x