What am I missing here?
Why not use the mosaic filter that comes with the PhotoShop-program?
It lets you specify excactly how big the pixels should be, and you dont have to resize.
To my eye this is the same result - is it not?
I wanted to put a smiley here, but I couldnt work it out
Terrific tip. Just the kind of stuff we need around here. Welcome to RetouchPRO!
And welcome to you, too. Appreciate you jumping in with a good question.
You're not missing anything re: why not use Mosaic filter? The funcational wish was to get these results w/o multiple passes of Mosaic, layer masks, etc. plus have the ability for random pixels to start "dropping out" near the edge of the image... without a lot of manual effort.
BTW: This forum software is wired to replace common stroke combinations such as colon-D, or semicolon-right paren with graphical equivalents. Click on a 'smiles icon' from the box at left (when in edit mode) to get the same results. One of the bonuses of this site!
From the pop-out menu, select "User CP", click on the "Edit Options" button, scroll down and click "yes" to vbCodel.
My 1st visit to this excellent Forum and first post.
I have, I believe, an exactly similar ideal to what Doug Nelson was asking for back when this topic was raised. He wants the pixels completely separated, and rounded, and themselves not so much degraded as fuzzier (at least, that's my wish). If I had a piece of well known art I could reference for you, I would, but I can't come up with one.
So simply put : you know what a billboard photo looks like when you get close-up to it? Each pixel is a mess of CMYK color, completely unintelligible, except when viewed at a good distance. Each pixel is very close in size to the next and almost all spread evenly apart. Together, they form a whole only able to be viewed from a long way back. That's the effect we are after in PS with an Action of some type.
How's that Doug?
P.S. I've contacted a good mate of mine who runs his own printing business, as I have a hunch the answer here is very technical and requires some lateral thinking. My assumption is that PS Actions are not normally able to produce the required effect because the photo needs to be 'digitally dissected' somehow, meaning, the pixels need to be stripped into idenitifed rows and columns first, then those rows and columns pulled apart, before a final PS action is layed over the top (noise perhaps?) to make the final image work. PS Actions would be unable (I believe) to do this first part of stripping, and thats why this doesn't appear possible in that program as yet.
However, my friend points out that what happens with photos that are then turned into billboard sized posters is; that they are converted into CMYK (in other words, color separated) and then blown up (magnified) onto canvas/paper. The digital finishers they employ either do this with filters on their Macs before printing, or they let the natural process of printing images at extremely large sizes do the work for them. Follow me?
More when I have it....
Last edited by candyflip; 01-06-2005 at 12:47 AM. Reason: new info..
It sounds like you're speaking more about the "rosettes" that are made up of the offset printing dots. I think PS has a filter to simulate this. And you're right, it's very technical. Rosette pattern is something argued over with great passion amongst prepress professionals.
Have found the PS filter to emulate this: it's Pixelate/Color Halftone, which seeks to emulate the Prepress process as talked about.
It works like this : Convert your image to CMYK 1st, then apply the filter above with the Prepress parameters of 15, 75, 0, 45 for Channels 1 thru 4. This doesn't give a perfect prepress image, I don't believe, but it's looking pretty good.
Attached is a crop of a TIFF photo I've been working on using this process. Is THIS closer to what you were after? It certainly is for me.
(Apologies for the poor quality - saved it down to 7% quality to make it under the 100K file size limit)
Variation on a theme
EDIT: Oh dear, i should paid attention to the start date on this thread before i started tinkering, i just did a search on google for ' disintegrating an image+photoshop ' and this thread came up 2nd in the search results, i thought that was kind of quick even by googles standards
Note to self: Much pay more attention !!!
Last edited by Axleuk; 01-14-2005 at 09:14 AM.
|Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)|
|Thread||Thread Starter||Forum||Replies||Last Post|
|Pixelated Images||danielhunter||Image Help||4||10-25-2007 06:28 PM|
|Pixelated Celebrities Game||Doug Nelson||Salon||617||03-02-2007 05:35 PM|
|Severely Pixelated Image||AndrewR||Image Help||10||08-01-2005 05:05 AM|
|Pixelated 300ppi scan||deadants||Photo Restoration||8||05-17-2005 10:07 PM|