Photoshop :: Enlarge Image Of Multiple Intersecting Low Resolution Contour Lines While Avoiding Pixelation
Feb 28, 2012
Problem: How to enlarge (100 times) image of multiple intersecting low resolution contour lines wile avoiding pixelation?
Simple answer: It can't be done.
Second thoughts: Well, under some circumstances it can be done... sort of. For example if lines are orthogonal to begin with then simple re-sample to nearest neighbor algorithm will do fine. If lines are simple enough, then tracing them with pen tool and recreating the original lines at higher resolution by stroking the paths with a brush will do also. Also if original lines are smooth and thick enough then some re-sampling, blurring and leveling can work (anisotropic diffusion filter may work) but will produce smoothing artifacts at corners.
From what I can see the problem boils down to creatively converting the original lines to vectors (paths / shapes) and avoiding the whole messiness of raster anti-aliasing. But here we face additional problems: Adobe trace engine is not smart enough to recognize geometric shapes, intersecting lines, straight edges, orthogonal lines and mathematical curves - just try to trace a font and you will end up with a baggy monster. Additionally, it appears that in Photoshop center-line trace is not possible and you are limited to outlines.
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Dec 9, 2013
Photoshop Elements 10. I want to enlarge an image and maintain 300 dpi resolution. If I enlarge the image the resolution automatically lowers. I need to keep the res at 300. How do I accomplish this?
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Aug 19, 2012
enlarging digital image without pixulation
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Jan 23, 2013
Basically, I am trying to process a simple drawn map that was scanned and saved as a PDF. The scanned image is old so the paper is yellowed and they scanned it in high res color even though the image is black and white (well, blue ink actually). I just want to make the background white and change the blue/black lines to solid black lines that retain their clarity.
Here is a portion of the image:
The left is the original and the right is what I WANT, but cannot, achieve.
My biggest issue has been pixelation of the lines. I just can't get it smooth like in the right image. I've tried all sorts of filters - blurs, smooths, sharpens etc.. Part of the problem is also the degradation of the image after I extract it from the PDF.
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Oct 6, 2013
Just grabbed Scott's book from amazon and can't wait to get a better understanding about some of the tools I've been using. In the meantime I just noticed that I have some white trails or fine lines in an image I'm working on that appear after I have been moving things around and deleting sections etc.
It's no problem on a little image like this to run around with the brush to tidy it up and then fill white/transparent, but I'm wondering if there is there a setting or an order of working that avoids making the lines in the first place?I have filled the background in black to show the trails...
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Nov 4, 2013
How can I change image resolution in multiple images?
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Sep 5, 2013
It also includes some editted type that intersects with more editted type. I really to need to combine them to a single line without the intersection of the half "x" and the top serif of the "g". I included a project file.
PS: I had attempted to use the Pathfinder Unite command, with no success. URL....
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Jul 12, 2012
I wonder if there is a way to get an intersecting point coordinate of two polylines(lines) programmatically.
For example, like in the below sample picture, I need to get coordinates of the points in the red cycles.
Is there any method that I can easily use?
Could I get a sample code snippet that computes the coordinates? (in C# & ObjectARX 2010 if possible?)
I've looked up "Through the Interface" and this disscussion group. couldn't find any useful yet.
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Aug 6, 2012
Attached shows lines (Parts) are intersecting each other in drafting mode. I have tried all but I am not able to resolve this issue.
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Sep 11, 2012
I have recently starting using dimensions lines with overwritten text to label items (as it is a quick way to label multiple identical items).
What I'd like to add is a mark (like an architectural tick/oblique) each time the dimension line intersects one of the items.
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Apr 10, 2013
I have Photoshop cs6 extended addition and was told Photoshop would work for the research application I need but so far I am finding it very difficult to do what I want. Basically, I need to be able to measure multiple lines (the red ones in the screen shot) of an image precisely, and make sure that the lines I measure are documented so that they are actually visible (so not just with the ruler tool) on the screen and labeled.
See image for example. I need the lengths (converted with the 2 micrometer scale at the bottom of the image). When I use the info, it gives me the lengths, but I can't save them, or look them up at a different time. Also, when using the line tool, then doing the "record measurement" it does not give me the length of the line but insted acts like it is a thin rectangle and gives me a height (which does not seem to be the same as if I used the measurement tool and put it next to the line, which is an idea I have, but not as accurate) and a width.
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Apr 29, 2008
I Have an old picture that is pixelated that im trying to clear up ...
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Aug 11, 2006
I have done a photoshop design (640x480pix tall@150dpi) and i need to make the image into a 100x70pix thumbnail gif at under 4kb.
Obviously the design just pixelates when i change the size and i have tried everything to try and stop it but it just won't work.
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Feb 19, 2012
how to increase the size of a picture without it getting too pixelated to identify what the image is. The problem I am having is I had to take a screenshot of a picture online and I need to identify specific wording on a small item in someones hand. I tried clicking on resize image and unchecked re-sample image but that is not working either.
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Mar 17, 2013
I realize the nature of my question maybe asking the impossible, but I have a low res image I downloaded from the internet, placed in an InDesign page, blew it up and printed it out. I was going for the distressed look that it has, it looks ok when I print it out considering it's low res and I blew it up fairly large. However, it's a little too pixelated to look professional when printed. Are they any tricks or things I can do to make it look higher res for print. I've attached the image as well as a screenshot of the InDesign file so you can see it in context.
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Aug 25, 2007
I am a Photoshop newbie and I have a series of graphics (all 72dpi from a website) that I would like to print in 300dpi. Is it possible to take a 72dpi .jpeg or .gif file and easily convert it to a higher resolution printable graphic? If Photoshop can't do it, is there any type of program that can?
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Mar 6, 2008
I need to reproduce wavy contour (blueprint) lines which will follow the undulating landscape on a lot of images I have. As per the attachment, they almost have a neon glow and are in a grid format. I can do a grid but adding the wave filter doesn't allow me to adapt it to suit the pic.
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Feb 4, 2013
How do I make a Background Image with multiple lines like something similar to the example? I want to make a background for a car repair firm where I can place cars on top.
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Aug 25, 2012
I am designing images for printing on vinyl, with the print shop requiring 72 ppi .tiff files.Producing the file in Illustrator (.ai) and printing it produces a clear image on paper without pixellation.
However, when I export to .tiff @ 72 ppi, the result is heavy pixellation which I cannot print.How do I avoid this pixelation when exporting to .tiff in Illustrator CS6?
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Oct 3, 2012
I've got a hi-res tiff image (5031x3579 px) which I need to use as a background on a very large print (2500 mm x2500 mm, 300 dpi). I placed the original image in InDesign and had to enlarge it by approx 800% to fit the canvas. Effective dpi ended up at 35dpi. This, no suprise, looks **** when viewed at 50-100%, so I thought maybe it would be better to resize the image in photoshop before placing it in InDesign. Well, I did do that and ended up with an image with a huge filesize (2,5 Gb) before saving it as a tiff again. I noticed that many of the save as options didn't come up, only tiff, Large image format and native PS. I still dont know what the final file size will be... still waiting for it to finish processing.
The method I used for enlargement was: Image size -> resample - bicubic smoother (best for enlargement) - in three steps, 200% up - 200% up - 150% up.
What is the best way using photoshop CS6? I know I will loose quality, but want to minimize the apparent loss the best way.
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Dec 16, 2004
I'm wanting to put up some pictures in my "study" that are influencing, read it in a magazine, and I remember these. Looking on the web it seems everyone "wished they'd come up with this ad campaign".
I'd like to enlarge them to A4 size as well, just to put them in glass frames, I don't know how legal this is but I can't find anywhere that sells them on the web, or who actually made them ?
I don't really understand the enlarging process
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Aug 5, 2009
i need to create an very large scaled pic / stencil off a a4 sized jpeg image...
though every time i blow it up it all goes pair shaped...
cleaning up the image to be even slightly more visible?
im using cs3 photoshop.
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Dec 28, 2011
We have shape file that I imported to MAP 3D using map import, I would like to get the contour lines in 3D and then open them in AutoCAD general and see them in 3D (They must have a z value). How can I do that.
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Sep 29, 2013
how to enlarge part of a RAW image
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Nov 19, 2013
I was sent an image from an i pad. It is only 320x240, 40kb and 72ppi. I tried in CS6 to enlarge it but anything over the initial image size is deeply blurred using Image or canvas in Image dropdown.
Can this be resolved to enlarge to 4x6, 5x7,8x10 with in CS6?
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May 6, 2004
I'm Trying to make a Headshot. Using my (Epson Perfection 1260)Scanner, I scanned a Back and White(4"x6") Sharp Image Photo at (1200 dpi) and enlarged it to(7"x 9").
Using PhotoShop I Sharpend the Image. I printed at (1440 dpi) using Glossy Photo Paper with my "Epson Stylus Photo 750" Printer. The Image has turned out Grainy and not very clear as the original although it did manage to pickup up detail like lint on the photograph LOL.
I tried enlarging the image in PS and increased the amount of Pixels, instead of during the scanning process but that resulted in poorer quality image.
The Photos that remain the same size as the original turn out excellent photo quality images.
How do I enlarge a photo from a smaller image and maintain almost the same quality as the original? It seems I am losing resolution somewhere along the way.
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Oct 25, 2005
way to take a smallish image grabbed from the net and then popart it and make it really large ? Looking for the best way to do this, maybe Vectors?
Im looking to enlarge to about 30 inches plus to print out to largre format.
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Dec 7, 2008
it can be done in ps.
You know when in a newspaper you get a star with a suspicious white ring round there nose, or a ingagment ring missing they have the image then a section coming off of it and enlarged.
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Nov 27, 2012
How do I enlarge an image in elements10?
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Oct 19, 2010
So I have finally been able to create a surface that I like and slice some 3D solids using this surface. But now I would like to draw some contour lines of that surface. I have seen some videos about creating contour lines (such as this one: URL.... ). But in this video they import the surface using the 'connect to data' button in the toolspace area. Is it possible to insert a surface from your drawing into the toolspace area and then draw the contour lines? I managed to insert the layer containing the surface using Data --> Add drawing data --> Drawing layer... but I cannot change style or create contour lines.
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Feb 28, 2013
I have a small residential project with corner lot sloping up diagonally from the intersection. The client wants to raise 'usable' surface of the site by introducing terracing - 3 retaining walls 3' high and 3' apart.
All is interrupted by a driveway and series of steps leading to the main level. I'm trying to modify existing surface, but the topo seems to have 'life of it's own' . I've tried to Split some surfaces to make life easier. That worked to some extent. How to make the topography cooperate? Is there a way to 'turn off' triangulation? ( not the visibility ) . I'm certain the contours I'm creating can be built, but Revit is 'changing' them to something else. Some points that I place are simply ignored.
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