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1  Re: Bob Dylan Mosaic in More Art, Less Craft: Completed Works by dgjert on: April 21, 2006 08:41:56 AM
Sure:
I actually used something call corel paint shop because i didn't have photoshop and they have a free trial.
It has a tool called "mosaic" -- photoshop has something very similar so I'm sure you can do it in photoshop.  The mosaic tool of course gives you tons of options that aren't really necessary for this.  The biggest challenge is reducing the photo to 16 colors, (since most photos contain hundreds or thousands of colors) and still having it look enough like the original image.  If it doesn't look good when you reduce it, you basically just can't use that picture.  Also, if after the fact you're going to try to match up the colors with vitreous tiles, you have to be careful to keep your pics colors within the range of the colors available in tile.  Greens, blues, grays and purples are the colors that seem to be most available in vitreous tile.  Reds are more expensive for some reason, I've never found any really good hot pinks, and there's not a lot of yellows or oranges.
So first:
Reduce the image to 16 colors (a menu option on most graphics programs.)
Set the mosaic tool to be just squares.  Corel paintshop has an option for depth (sorry I can't be more specific at the moment, unfortunately my trial ran out and I haven't bought the program yet.)  The depth option creates the illusion of depth by added little shadows of a slightly darker tone to each tile.  For my purposes, this doesn't help, because I need each tile to be one uniform color in order to reproduce it using glass tile.  Then you can set how many tiles the picture uses.  This is where a little bit of screwing around is necessary.  Too few tiles and you can't see your image.  Too *many* tiles and in order for me to make the thing using 3/4" glass tile it would take up my entire work room.
Here's the original photo that I used in my sid viscious mosaic:

Here's it tiled in corel paint shop:

(it was easier to do than the dylan since the original photo was almost black and white.)
here's the resulting mosaic:

Obviously, once I print out the image I have to make some choices.  I crop it, number each line of tile, and in this case, used oranges instead of pinks because I wanted a really hot bright color and I couldn't find a good pink to use.
I hope this was at least a little bit helpful.  Mostly with the photo part I've found you just have to keep changing the number of tiles and look at it, again and again, sometimes squinting a bit, to see if it will read.  Once you start tiling you also have to make some choices, usually simplifying the image somewhat as you go.


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2  another portrait mosaic - sid vicious in More Art, Less Craft: Completed Works by dgjert on: March 29, 2006 01:12:37 PM
I made another portrait mosaic, this one a little bit more abstract but based on a pretty famous photo of sid vicious.  It's vitreous glass tile and grout on MDF.

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3  Bob Dylan Mosaic in More Art, Less Craft: Completed Works by dgjert on: March 17, 2006 09:57:50 AM
I've been very interested in doing mosaics lately and I decided to try something a little bit more arty.  I took a photograph of dylan, pixalated it using a graphics program, reduced the colors and screwed around with it a bit and printed it out.  Then I tried to match various colors of commercially available vitreous glass tile to the colors in my picture, gridded out a piece of MDF and glued the tile on.  A fair amount of trial and error was involved, but I'm quite pleased with the final, grouted product.

The first photo is a little blurry, which enhances the optical illusion, and second is from across the room.




The last is from pretty close and clear.


I've been experimenting with this technique on other sorts of images and have gotten some interesting results.

Here is a very close up picture that shows the details of the tiles.  I really like that up close it has a crafty, home made feel, when from far away it has a somewhat photo realistic effect.
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4  Smashed keyboard mosaic in Completed Projects by dgjert on: January 20, 2006 08:37:17 AM
I saw a bag of computer keyboard keys in the trash and I thought I could use them to make my boyfriend something that said "I work in computers but I'm still punk rock" for his desk.  This is what I came up with:



It's computer keys, various styles of mosaic tiles and a few marbles on plywood.
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5  First post - First mosaic: Lava Lamp Shelf in Crafty Housewares: Completed Projects: General by dgjert on: January 14, 2006 08:10:48 AM
I made some mistakes making this (most notably, all the vitreous glass tiles are upside down, the ridges are to create more surface area for the glue, though I kind of like the way it looks.)  That just helped me realize how hard it is to screw up a mosaic.  I chose a lava lamp as a design because I wanted an excuse to use a few different materials.  While there are things I would do differently if I had to do it all again, I am quite happy with it.  Most of the surface is 3/4 vitreous glass tiles, the body of the lamp is smalti and the glass part of the lamp (and lava) is glass.



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