Advice on turning photo to line art

other than tracing w/ the pen tool, is there any good way of turning a photo image (from online source so not great resolution, and not all details needed) into line art?

I assume you have a high res version of the photo. Working in Photoshop, I would adjust levels to bring out the squares. Then use dodge and burn tools to further isolate them (you may have to paint in a couple). Then you can probably get a decent auto-trace. Of course, by then you could have traced it.
To trace it you could simply draw lines horizontally and vertically, in line with the squares, then convert them to a live paint object and fill in the intersecting squares.

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[svn:bz-trunk] 20765: change photo to line art

Revision: 20765
Revision: 20765
Author:   [email protected]
Date:     2011-03-10 10:20:42 -0800 (Thu, 10 Mar 2011)
Log Message:
change photo to line art
Modified Paths:
    blazeds/trunk/qa/apps/qa-regress/WEB-INF/src/photo/person0.jpg

If you use Threshold, you can add some gaussian blur to the image to make the edges smoother. You can also add a brightness/contrast adjustment layer between the blurred image and the threshold layer to fine tune the edges.
If you have Windows, you might want to look at Medhi's Fine Threshold filter (freeware) found here:
http://www.mehdiplugins.com/english/finethreshold.htm
Edit: You could also use Find Edges on the image first; desaturate it; then use a threshold adjustment layer. Go back to the Find Edges layer and add gaussian blur to taste. To further fine tune, slip a brightness/contrast layer between the blurred image and the threshold to control line thickness/detail. (FWIW, I would make a copy of the Find Edges layer and blur the duplicate so if you change your mind you don't have to start the project from scratch.)

Photo to line art, help needed

Hello - I'm struggling with a rather simple task: turning this image (http://img13.imageshack.us/img13/3641/limb1.jpg) into basic, b+w, vector line art. I'm not sure of the best approach. I've considered making a grid of squares and warping it to fit the shape, or using the pen to more or less trace the image...unfortunately, the image is poorly shot + lit so I can't use any automated trace tools. I'd love some help if someone knows a good approach!
Necessary info: os x 10.5, CS2.

I assume you have a high res version of the photo. Working in Photoshop, I would adjust levels to bring out the squares. Then use dodge and burn tools to further isolate them (you may have to paint in a couple). Then you can probably get a decent auto-trace. Of course, by then you could have traced it.
To trace it you could simply draw lines horizontally and vertically, in line with the squares, then convert them to a live paint object and fill in the intersecting squares.

Convert photo to line art?

Dear Forum,
I am trialing Elements and Illustrator but cannot find a solution in help or the forums, or any book at Borders, so I hope someone can help. I am looking for a way to convert photos (JPEGS) of flowers to black line art......like a coloring book, not just black and white or grayscale or sylhouette. I will then print out the line art (1-2 pixel black line art) to clear acetate for use as a positive original for creating a silkscreen via photo emulsion exposure (and then silkscreen printing the line art to fabric for hand painting). I am doing this by hand now.....place a sheet of acetate over the photo and outlining "edges" by eye with a fine Sharpie, then using that as the positive original. See attached file for an example. The line art needs to be relatively detailed ( e.g. petals, stamen, leaves) but not absolutely perfect as I only need to print guide lines on fabric for subsequent hand painting. It seems easy to do by "eye", tracing edges of color or tone change, but I have not figured out how to make that happen in Elements or Illustrator. Of course I have only had the trial for a couple days, and have used live trace, posterization, etc, but have not been lucky. Please point me in the right direction. If I can make this happen with an Adobe product, then I will buy it.....I have hundreds of photos to convert. Thanks.....Bob

If you use Threshold, you can add some gaussian blur to the image to make the edges smoother. You can also add a brightness/contrast adjustment layer between the blurred image and the threshold layer to fine tune the edges.
If you have Windows, you might want to look at Medhi's Fine Threshold filter (freeware) found here:
http://www.mehdiplugins.com/english/finethreshold.htm
Edit: You could also use Find Edges on the image first; desaturate it; then use a threshold adjustment layer. Go back to the Find Edges layer and add gaussian blur to taste. To further fine tune, slip a brightness/contrast layer between the blurred image and the threshold to control line thickness/detail. (FWIW, I would make a copy of the Find Edges layer and blur the duplicate so if you change your mind you don't have to start the project from scratch.)

Is there a filter or plug-in for Photoshop CS6 that will allow me to convert a photo into line art?

Image conversion to line art...how in Photoshop?

Good day!
You may want to test the Adobe Illustrator trial.
Regards,
Pfaffenbichler

Converting photo to line art?

I have Photoshop Elements 5.0 and want to know if there is a way to take a photograph and convert it into a line art image. I have tried a combination of a few different filters and have not been able to get the results I am looking for. Any thoughts?

It is not easy, and works best if image does not have a great deal of texture. Try this:
Open image
Duplicate background layer
Filter>other>High pass. Want small radius
Filter>sketch>Notepaper. Try image balance=25, Grain=0, Relief=0
Filter>adjustments>threshold. Work slider to get black & white image
Use pencil tool to get rid of stray pixels

Converting pic to line art

I'm about to purchase some scale models I want to photograph, then turn the photos into line art so I can make alterations to them. Is it easier to turn a picture that is mostly white or very colorful into line art using Photoshop?
Thanks guys!

From a quick test:
Load in your file.
Save As to a new name to protect the original.
Increase the contrast.
In CS-4, go to Filters/Styilize/Trace Contour
OR
Filters/Styilize/Find Edges.
Both will need fine tuning to get as close as possible to what you want.
Desaturate to turn it grey scale.
Adjust Levels to get the cut off as close as possible to where you want it.
Erase out what you don't want.
I was using a low contrast file and did get something that was line artish both ways.
Bill

Anyone have experience using high-res files (eg line art) in Aperture?

As I found at http://discussions.apple.com/thread.jspa?threadID=1741287&tstart=0 it seems that Aperture will choke on files over a certain size. I'll grant, I tried something that is outside the scope of Aperture---I tried using it to store a workflow starting with a scan rather than a photo. The scan is higher resolution than most digital photos (as line art must be).
Does anyone have any experience with high-resolution photos or scans? I'm talking over a hundred MB, possibly upwards of a gigabyte. These are precisely the sort of files that I want to create lower-res versions for specific applications and have them be linked to the master file.

I tried to use Aperture with my line art scans in the early versions of Aperture, but gave it up because Aperture did not seem to handle the file size.
Instead I use another workflow for my artwork, Bridge, Photoshop, Illustrator and Version Cue in combination with Extensis Portfolio. This is a very pleasing solution for me and I would recommend it to others to try out as well.
For me, Aperture is used for managing and adjusting my photographs.
Regards
Paul K

Pixelated Line Art in Photo Gallery

Hi
I am designing a photo gallery that externally loads jpegs
via XML. I have an actionscript that allows the jpegs to randomly
rotate at an angle as they load onto the stage. The jpegs contain
mostly logos that are line art. It works great but the images are
pixelated when they are at an angle since they are logos/line art.
I can't seem to find a solution to solve this pixelation problem. I
tried loading gif files instead but for some reason gifs does not
load correctly.
Any ideas? Thanks!

Hi dzedward
Thanks for your reply. I attempted to create an
emptyMovieClip and applied cacheAsBitmap in context of the
actionScipt that already exist in the file. I tried to follow the
examples in the Flash 8 documentation but failed. The photo gallery
I am editing from can be downloaded here:
http://www.ffiles.com/flash/photo_galleries/xml_gallery_2/
Please help. Thanks

Convert photos of buildings to line art.

I am looking for a program that can convert photos of buildings to crisp, clean line art with no shadings or noise. Is there a program that can do this? If not what would come closest to what I need and I can test it.
Thank you.
Lisa

Here is a way to do it in Photoshop.
http://luminous-landscape.com/new-page-9/

What is the best way to turn line art into a 3D image in Illustrator? Thanks for your help.

What is the best way to turn line art into a 3D image in Illustrator? Thanks for your help.

What version of Illustrator? What do you mean by "Line Art"? What do you mean by "3d image"? Post images showing your starting artwork and an example of what you are trying to achieve.
If you have Illustrator 12 or higher you can extrude or lathe a simple group or path using Effects > 3D > [Pick one]. You must start with vector data, not a placed raster image. You are very limited in what you can do, and you cannot model multiple objects within one 3D world. Each object you extrude/revolve/rotate is its own world, with its own perspective and camera. You can also make any art into a Symbol, then map that symbol onto any 3D surface you create. The results are, at best, acceptable, and often total garbage.

Using Reader XI (eleven). Line art in download file has turned black. How do I get line art back?

I am using Reader XI (eleven). I have downloaded my Nikon S9700 camera resource manual (pdf) and now all the line art appears as black images. How do I restore the line art? Document was created in Adobe 5.X. I have downloaded most recent version of camera manual and same condition exists.

Answered my own question: Under Preferences> Accessibility> Document Color Options I had selected "Replace Document Colors". Don't you love it when things work out?

Line art problem outputting to pdf

I have a problem with exporting pages of a magazine going to print as pdf, relating to line art placed on the page as a bitmap tiff (typically at 1200 ppi). At present I have a workaround for an annoying problem that really needs clearing up ...
I'm using CS4 InDesign and Acrobat (files prepared in Photoshop). So, high-res bitmap tiff containing line art sized (that is, just placed - no resizing in Indesign) and placed in Indesign, looks fine on the page. Output to pdf using 'export' and the resulting file, when viewed on screen, has a thin line down the right-hand edge of any and all bitmap files.
To ensure no misunderstanding, the 'bitmap' reference is what Photoshop calls it - a bilevel file with black lines in it, which enables me easily to overlay other files such as a photo (because the file is black/transparent) and assign a colour or tint to the bitmap, or even a drop shadow etc. I've used this workflow for years, from Photoshop through Indesign, but the latter always gives me this line on the right edge, in the pdf. It did this in CS3 Indesign/Acrobat as well (but never in Pagemaker).
My workaround is to lay a white-filled box over the edge of the file, thus masking it. But of course, that also limits me to where I can place the file - not easily on a graded tint background, not on a photo and so on. So I'd like to solve this.
Any ideas? OS is Win XP Pro (all updates applied to this and the CS programs - I don't believe they make a difference to this problem, as it has existed through several iterations of both OS and CS).
Anyone else seen this effect? Or is it just me? And has anyone a potential solution?
Chris

I think by reason of not knowing what else I can do, I'm heading to the same conclusion - put up with it! I'll certainly try sending a line to print and see if it appears, but for on-screen stuff, I think I have to stick with the safe workaround I use and accept the layout limitations. (Or resort to Pagemaker for the pages that I just cannot do otherwise.)
Seems to me, if people have reported this for years, Adobe might have tried sorting it out. On screen or not, it still must be due to *something* in the file and/or Acrobat/Distiller to allow it to appear. If I create a white greyscale tiff with the same resolution etc, and place it on a page, there's no line down the edge on output - just a white page with a white (invisible) box. If I do this with an 'empty' bitmap file, a line appears ... Both files created in Adobe programs, so it's not me as a user ...
Just me whinging! I'm really coming from the angle that if this is indeed a display problem, it can only be a display problem if there is something in the file for the display to react to (badly phrased that!).
Thanks everyone for your support and ideas - I think that's me finished for now; I have files to upload and then sleep.

Line art filter shimmer

hi all - I have applied the line art filter to a short clip and the effect is perfect when it's not playing - but when it plays there is a shimmer in areas of the image. The clips are 640 X 480, 30 fps, progressive. The FCP timeline setting is for Photo JPEG. They are color corrected for brightness and contrast with a smidge of saturation in FCP and then sent to Motion. I have played with all the parameters with no luck and looked for another filter to reduce the shimmer to no avail.
Anybody know of a way to get rid of this shimmer?

Depending on your settings, the Line Art plugin tends to amplify noise by "outlining" all the differences, which change slightly, frame to frame...
Patrick

Creating line art in photoshop

Hi all,
I have experimented with various tutorials and filters in photoshop hoping to replicate the clean smooth lines of the line art type image below (image based of a photo I presume).
Does anyone know or can provide me with some tutorials on how to do such work.
Any help would be great

Probably done with the Trace function in a vector program.
Similar results are possible but difficult with Photoshop.

Advice on turning photo to line art

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