Hot answers tagged pixelation
7
It's going to largely depend on the original size. Photoshop is many things, but it's not magic. It can do some fairly impressive things with pixel interpolation but there's a limit.
I would suggest using "Image" -> "Image Size..." and scaling it that way - at least it will scale consistently. I am not quite sure how exact you need to be when you say "any" ...
6
I'm sure there are other (better?) alternatives, but S-Spline interpolation creates pretty good-looking images. A quick Google search revealed this tool: PhotoZoom Pro.
Also, here's a lengthy comparison of different interpolation techniques and tools: Digital Photo Interpolation - what is the best image resizing / resampling method?
4
Grid is not a vector object, therefore you can't fill it.
The best way to do what you want is drawing the shape you want to fill using the Bezier line tool with "snap to grid" option on. (As I can see on your screenshot this option is enabled for you).
Then your drawing will fit the grid as you place points.
The final step: fill your shape with the color ...
3
You should rasterize it in the right pixel dimensions directly from Illustrator whenever possible, but when you're resizing things in Photosohop there is a choice of resampling modes:
Nearest Neighbor - This is the simplest form of resampling, if you can even call it that, where the original pixels are just expanded to the next full pixel to fill the new ...
3
Voxels are by definition 3 dimensional elements but your graphic has no 3 dimensional information to it. You will need to somehow define 3D information for your shapes.
One simple approach would be to import your vector image into a 3D tool (3ds max, Maya, Blender, etc.) and extrude the shape. However the 3D model generated this way may not look like what ...
3
There are good plugins for that:
onOne Perfect Resize (formerly known as Genuine Fractals)
AKVIS Magnifier
I prefer onOne's one. You can try them for some period of time before buying.
2
With this particular image, I'd scale it up with Image Size at 200%, using bicubic interpolation, and then correct the issues.
The only areas where pixelation will be noticeable will be:
the arrow symbol. Was that based on a dingbat font symbol? If so, should be easy to recreate.
the right hand angled outline. Copy a rectangular area from just left of the ...
2
There is no way for an algorithm to know exactly how you'd like an aliased edge to look when resized. The program doesn't know what you're trying to draw. So if you try to resize a shape with absolutely no anti-aliasing whatsoever, you may get unwanted results. This problem has been somewhat curbed with the latest content-aware updates to PS, but it has not ...
2
If you have ruby installed this might be a possible option for you.
See this gist https://gist.github.com/71598aeb1d823c9229ac
It uses chunky_png to pixellate the image, so you may need to adapt the code slightly if you want to produce other file formats.
For more information about it see this link
...
2
I think the usual trick is to scale down so that you lose resolution and then scale up to magnify the low-res image. So with Imagemagick, something like this:
convert -scale 10% -scale 1000% original.jpg pixelated.jpg
UPDATE: if you just want to be able to specify a single "pixelation amount" value, then the above command can be wrapped in a shell script ...
2
I was able to achieve something similar, try the following:
http://imgur.com/a/O81OV#0
Step 1. Create a new document with relatively small dimensions.
Step 2. Select the Pen tool, change the size to 1px
Step 3. Edit the Brush settings (Window -> Brush) for Spacing, I put Scatter at 750%
Step 4. Edit the Brush settings for Scattering, I put Scatter at ...
2
There is many ways to accomplish that dept of field effect you are looking for, so I'll just link you to some of the tutorials I found:
http://www.ephotozine.com/article/creating-shallow-depth-of-field-using-gimp-9722
http://tutorialgeek.blogspot.com.ar/2011/02/fake-depth-of-field-in-gimp-dof.html
http://gimpguru.org/tutorials/simulateddof/
...
1
I would build a segment by hand and then apply it as a pattern.
You could also build the segment in Illustrator and create a pattern brush with it.
1
There's a whole category "grain scan" products that are created for just this type of effect. They're produced by companies that actually scan exposed and developed films expressly for the purpose of capturing the grain pattern to replicate the effect of that specific film with a digital image. Most of these products are geared toward video production and ...
1
Contrast+Blur+Saturation+Grain
Select your background copy layer and apply a blur –
Filter>Blur>Motion Blur
Increase Contrast – Layer>New Adjustment Layer>Brightness and Contrast
Increase Saturation – Layer>New Adjustment Layer>Hue and Saturation
Create some grain by re-selecting your Background copy layer then do
the following – ...
1
171x100 pixels gives you an image that is slightly more than 1/2 inch wide at 300 pixels per inch. I'm taking a guess that this is not the size you specified in the Illustrator document, which is why your output was pixellated, and when you worked in inches inside Photoshop you then got a correct result in Illustrator.
A 2 inch image at 300 ppi is 600 ...
1
If you're trying to communicate the message that the encrypted image is unrecognisable as the original image, with a 'before' and 'after' pair, then at least part of the 'after' image has to be unrecognisable as the original.
Assuming it has to be both unrecognizable, and immediately recognisable, that sounds impossible... but one way to do it would be ...
1
Astronomers and especially planetary scientists working with images from spacecraft are always needing to fit circles and ellipses to pixelated images. It is routine to find edges and centers of circles to 1/10 pixel accuracy by skillful fitting to the jaggies. However, converting the image to a sharp-looking higher res one is not among the goals of ...
1
I think the main features you're after are:
Being able to paint with a non-antialiased pencil or brush.
Nearest neighbour scaling (keep blocky things blocky when you scale).
Non-antialiased selections.
Layers.
Being able to export the formats you'll need (PNG? GIF?).
Based on that criteria, I'd highly recommend Photoshop, predominately using the Pencil ...
1
There are so many good software to work around.
If you can afford adobe you should go for
Photoshop and fireworks they both works awesome for pixels.
You can check these links also they are dedicated to complete game pixel work...
Anim Pixels
Pixel Art software
Graphics Gale
A good list of software's with links
1
Blender will let you import a path or create a path that you can extrude into 3D. Once you have the model you should be able to use the link you posted to voxelize your object.
1
When scaling in Photoshop, make sure to select "Bicubic Smoother" (best for enlargements). Then you can always run the Unsharp Mask filter over the image to sharpen it up (it will still come out a little blurry).
But honestly if you want to get the best enlargements you can, try the Genuine Fractals plugin (apparently now called "Perfect Resize") from OnOne ...
1
The Liquid Rescale plugin for GIMP resizes (smaller, larger, different aspect ratios) images using seam carving which is able to find the least significant lines of a photo and add or remove those lines. Since I don't understand the algorithm very well, I can't explain it, but it essentially lets you resize and/or rescale images without loosing quality.
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