@pelegtz Thank you very much :) -- one way to get R G and B layers is to make three copies of the image and multiply the top layer by pure red (255 0 0) and merge down, then repeat with the middle layer and pure green, and the bottom layer and pure blue. There are other methods involving using the channels palette but one method preserves color management while the other bypasses it.
Hi, is there a way to do the same thing but with this colors: red, yellow, blue, white and black? I've been trying to do it for days but can't figure it out... thanks in advance!
@gustavonarez I don't think so. Even if you use magenta (for red), yellow, cyan (for blue), white and black there is no way to make, for instance, green without overlapping yellow and cyan and multiplying them. There are no colors that when placed adjacent to each other make green.
@digitalArtform Thanks for answering :) This is what I'm trying to do: watch?v=TrHI3h76Q4Q&feature=related I guess he uses Photoshop to do it but it seems so hard, any idea how he does it? He breaks an image into pixels of this colors (red, yellow, blue, white and black)... Again thanks for your help!
@gustavonarez I notice he doesn't seem to have green. Anyway - one idea might be to mosaic a photo into low rez pixles and difference blend mode each pixel with each of the 5 colors in turn. Whichever produces the darkest difference is therefore closest to the color of the layer being tested (similar color minus similar color = close to black for the same reason that 255 - 253 = 2). Another idea is to consider larger areas than a single pixel and do 5-color dither patterns. (special software)
@gustavonarez To see more about dithering, visit my youtube video called Scar13 Polynesian Tapa Cloth - Hula Photo mosaic watch?v=QZdGaeqNz8g and also visit the web page I refer to in the info section
@gustavonarez Finally, make big coarse low resolution tic-tac-toe boards of size 2x2 (or 3x3 if you are super patient) and fill them with your 5 colors in every possible combination. Then take that collection of colored square tic-tac-toe boards and feed it as input into a standard photo mosaic program.
@digitalArtform Thanks!!!! I made the last method, 2x2 tiles witht he 5 colors (110 combinations) and then used the free software Andreamosaic... it looks amazing... do you think that if I make the 3x3 tiles it would look even better? I figured that the 2x2 can make all the 3x3 combinations, but I'm not sure...
@gustavonarez I'm thinking in a 2x2 (= 4 squares) 5 colors is like a base 5 number 4 digits long. 5^4=625 combinations. 3 blues and a yellow in upper left corner may seem the same as 3 blues and a yellow in lower right corner but Andreamosaic may prefer one to the other for a certain location. If my math is right 3x3 grid at 5 colors is 5^9=1 953 125 combos so spcial software has to be used. This is sort of why binary grid QR Codes can have so many combos. (I hope my math is right :D )
@gustavonarez OK - new idea. Take your photo into Photoshop and convert from RGB to Image > Mode > Indexed Color (same idea as a .gif ) . Play with the options, particularly Forced > Custom Palette, and specify your 5 custom colors. This seems to get things pretty close. Maybe you can make it exact.
@gustavonarez I have it exactly now. Use Image > Mode > Indexed Color. Use an 8 color custom palette. Let the 8 colors be black, white, red twice, yellow twice, and blue twice. (Photoshop does not seem to allow a 5 color custom palette so I fooled it in this way) - let the dither amount be 100% and check 'exact colors' box - I think. There you have it - all in Photoshop and very easily done.
@digitalArtform This works great! I have tried to use index color but hadn't worked... This time I resize the image first so it gave me aprox. 20,000 pixels, then I used the Index color as you said and I played with the Diffusion %... beacuse at 100% it looks very white, but between 30% and 55% it looks extremely well... even better than with andreamosaic! :D
@gustavonarez One other thing - I notice that in 2011 the guy in your video, Eric Daigh, switched from regular rectangular horizontal and vertical arrays to 'hexagonal closest packing' or a half drop brick pattern. I explain how to do that on my website on a page titled 'Distort Photoshop Filter Without Distorting Image' - you basically pre-distort the image, then mosaic it into pins, then restore the image which has the effect of distorting the pin placement but not the image.
@digitalArtform you're right about that! He changed in 2011... Hadn't notice it, I will try that too... altough I think it looks better in the normal vertical/horizontal... thanks for all the help, maybe I send you a photo of the finished work heh... cheers!
@digitalArtform hello there i found this video searching for the work of Eric Daigh. Ive tried the Distort Photoshop Filter Without Distorting Image successfully, but i cannot yet get the effect after applying the indexed color method since every mosaic (20px) turns into individual pixels..not sure if im making myself clear here but could you please elaborate on how to do it.
@wickedpictorials If I understand correctly you may need to go through a very low resolution phase (1 pixel mosaic) and then blow up 20x using the 'nearest neighbor' choice so the image stays in flat color blocks.
@digitalArtform so the thing is, i have no idea in how to turn the 2px mosaics into 1 pushpin. i lose the closest neighbor effect after aplying the indexed color mode. Any idea oh how to do this? The importance of getting this done is that i can use more pushpins into the cork board and hence get a image with more...lets say resolution.
im a basic photoshop user, so please be patient with me lol.
I just love your videos:)
can you tell me how did you extracted the R, G and B version of the image (women) to work with in the first place? ( 0:13 )
pelegtz 2 months ago
@pelegtz Thank you very much :) -- one way to get R G and B layers is to make three copies of the image and multiply the top layer by pure red (255 0 0) and merge down, then repeat with the middle layer and pure green, and the bottom layer and pure blue. There are other methods involving using the channels palette but one method preserves color management while the other bypasses it.
digitalArtform 2 months ago
Hi, is there a way to do the same thing but with this colors: red, yellow, blue, white and black? I've been trying to do it for days but can't figure it out... thanks in advance!
gustavonarez 11 months ago
@gustavonarez I don't think so. Even if you use magenta (for red), yellow, cyan (for blue), white and black there is no way to make, for instance, green without overlapping yellow and cyan and multiplying them. There are no colors that when placed adjacent to each other make green.
digitalArtform 11 months ago
@digitalArtform Thanks for answering :) This is what I'm trying to do: watch?v=TrHI3h76Q4Q&feature=related I guess he uses Photoshop to do it but it seems so hard, any idea how he does it? He breaks an image into pixels of this colors (red, yellow, blue, white and black)... Again thanks for your help!
gustavonarez 11 months ago
@gustavonarez I notice he doesn't seem to have green. Anyway - one idea might be to mosaic a photo into low rez pixles and difference blend mode each pixel with each of the 5 colors in turn. Whichever produces the darkest difference is therefore closest to the color of the layer being tested (similar color minus similar color = close to black for the same reason that 255 - 253 = 2). Another idea is to consider larger areas than a single pixel and do 5-color dither patterns. (special software)
digitalArtform 11 months ago
@gustavonarez To see more about dithering, visit my youtube video called Scar13 Polynesian Tapa Cloth - Hula Photo mosaic watch?v=QZdGaeqNz8g and also visit the web page I refer to in the info section
digitalArtform 11 months ago
@gustavonarez Finally, make big coarse low resolution tic-tac-toe boards of size 2x2 (or 3x3 if you are super patient) and fill them with your 5 colors in every possible combination. Then take that collection of colored square tic-tac-toe boards and feed it as input into a standard photo mosaic program.
digitalArtform 11 months ago
@digitalArtform Thanks!!!! I made the last method, 2x2 tiles witht he 5 colors (110 combinations) and then used the free software Andreamosaic... it looks amazing... do you think that if I make the 3x3 tiles it would look even better? I figured that the 2x2 can make all the 3x3 combinations, but I'm not sure...
gustavonarez 11 months ago
@gustavonarez I'm thinking in a 2x2 (= 4 squares) 5 colors is like a base 5 number 4 digits long. 5^4=625 combinations. 3 blues and a yellow in upper left corner may seem the same as 3 blues and a yellow in lower right corner but Andreamosaic may prefer one to the other for a certain location. If my math is right 3x3 grid at 5 colors is 5^9=1 953 125 combos so spcial software has to be used. This is sort of why binary grid QR Codes can have so many combos. (I hope my math is right :D )
digitalArtform 11 months ago
@gustavonarez OK - new idea. Take your photo into Photoshop and convert from RGB to Image > Mode > Indexed Color (same idea as a .gif ) . Play with the options, particularly Forced > Custom Palette, and specify your 5 custom colors. This seems to get things pretty close. Maybe you can make it exact.
digitalArtform 11 months ago
@gustavonarez I have it exactly now. Use Image > Mode > Indexed Color. Use an 8 color custom palette. Let the 8 colors be black, white, red twice, yellow twice, and blue twice. (Photoshop does not seem to allow a 5 color custom palette so I fooled it in this way) - let the dither amount be 100% and check 'exact colors' box - I think. There you have it - all in Photoshop and very easily done.
digitalArtform 11 months ago
@digitalArtform This works great! I have tried to use index color but hadn't worked... This time I resize the image first so it gave me aprox. 20,000 pixels, then I used the Index color as you said and I played with the Diffusion %... beacuse at 100% it looks very white, but between 30% and 55% it looks extremely well... even better than with andreamosaic! :D
gustavonarez 11 months ago
@gustavonarez One other thing - I notice that in 2011 the guy in your video, Eric Daigh, switched from regular rectangular horizontal and vertical arrays to 'hexagonal closest packing' or a half drop brick pattern. I explain how to do that on my website on a page titled 'Distort Photoshop Filter Without Distorting Image' - you basically pre-distort the image, then mosaic it into pins, then restore the image which has the effect of distorting the pin placement but not the image.
digitalArtform 11 months ago
@digitalArtform you're right about that! He changed in 2011... Hadn't notice it, I will try that too... altough I think it looks better in the normal vertical/horizontal... thanks for all the help, maybe I send you a photo of the finished work heh... cheers!
gustavonarez 11 months ago
@digitalArtform hello there i found this video searching for the work of Eric Daigh. Ive tried the Distort Photoshop Filter Without Distorting Image successfully, but i cannot yet get the effect after applying the indexed color method since every mosaic (20px) turns into individual pixels..not sure if im making myself clear here but could you please elaborate on how to do it.
I would really appreciate it. Thanks
wickedpictorials 9 months ago
@wickedpictorials If I understand correctly you may need to go through a very low resolution phase (1 pixel mosaic) and then blow up 20x using the 'nearest neighbor' choice so the image stays in flat color blocks.
Are you trying to ultimately use push-pins?
digitalArtform 9 months ago
@digitalArtform thanks for ur reply. As far as im concerned you cant pull a 1px mosaic. The range is between 2 and 200px.
ill explain what im doing:
1. i get the Full brick offset mosaic (vertical direction). One level is offset, then mosaiced, then re-offset
2. so far i have 3 layers. to apply the indexed color method i have to flatten the visible layers.
and heres where the problem starts, by going with the indexed mode with the custom palette, all my 2px mosaics are gone, they turn into 4px
wickedpictorials 9 months ago
@digitalArtform so the thing is, i have no idea in how to turn the 2px mosaics into 1 pushpin. i lose the closest neighbor effect after aplying the indexed color mode. Any idea oh how to do this? The importance of getting this done is that i can use more pushpins into the cork board and hence get a image with more...lets say resolution.
im a basic photoshop user, so please be patient with me lol.
wickedpictorials 9 months ago
Holy Crap! That's amazing... I can't wait to show my design teacher this trick...
pfisterbaby 2 years ago
That's brilliant!
cabes1978 2 years ago
Thank you : )
digitalArtform 2 years ago