Pixel Joint Forum: dithering

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OK I've been practicing dithering and i've finished this practice strip. so i can see the correct technique in my head that little bit better but now i've finished it and i can't help but to think that there is something missing or wrong with this piece. and was wondering if anyone could help me out with this?

Edited by x-death - 07 January 2009 at 6:31pm

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x-death Commander Joined: 09 February 2019 Location: Australia Online Status: Offline Posts: 151	Topic: dithering Posted: 07 January 2009 at 6:31pm
	OK I've been practicing dithering and i've finished this practice strip. so i can see the correct technique in my head that little bit better but now i've finished it and i can't help but to think that there is something missing or wrong with this piece. and was wondering if anyone could help me out with this? Edited by x-death - 07 January 2009 at 6:31pm
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Larwick Commander Joined: 18 July 2024 Online Status: Offline Posts: 4015	Posted: 08 January 2009 at 3:12pm
	If we look at 3 of those shades in a row; you're crossing over the 1st and 3rd colours with the 2nd colour between them. If that makes sense. You're over-lapping basically, which creates a very noticeable texture and pattern. If you simply want a dithered gradient, you need to use the solid colours too, don't try to replicate the solid colour with crazy combos if the colour is in your palette. If you want a noticeably textured gradient, you can use special dither styles or highten the contrast between shades - or simply lower the amount of solid colour (however i wouldn't overlap like you've done, unless that's really what you wanted). Hope that's a little helpful.

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x-death Commander Joined: 09 February 2019 Location: Australia Online Status: Offline Posts: 151	Posted: 08 January 2009 at 8:05pm
	thats the thing though, i don't know how to dither. thats the way i though people were suppose to dither. so could someone show me the correct way when you have a 3 color palette or more?
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Hapiel Rear Admiral Joined: 30 June 2023 Online Status: Offline Posts: 3266	Posted: 09 January 2009 at 4:08am
	3 colors is just as 2 strokes of 2 colors next to each other. Don't mix up all 3, that would be useless, unless you are creating a very rough texture.
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x-death Commander Joined: 09 February 2019 Location: Australia Online Status: Offline Posts: 151	Posted: 09 January 2009 at 5:11am
	yeah but could one of you do an example peiuce just so i can get a better feel for what your saying. and i'm not sure i completely understand the whole amount of colors you should use when your doing more dithering based pieces.
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Hapiel Rear Admiral Joined: 30 June 2023 Online Status: Offline Posts: 3266	Posted: 09 January 2009 at 7:44am
	Still, I would like it more if you made less tests, and more drawings. You learn way more of it!
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Larwick Commander Joined: 18 July 2024 Online Status: Offline Posts: 4015	Posted: 09 January 2009 at 1:20pm
	x-death, if you notice Lollige's example, you can see that each 'colour takes up 3 pixels in width. This doesn't give any of the shades priority, and so the gradient seems smoother. With this in mind, you can add different dither types (25% etc) to further smoothen the ramp (for one that takes up a larger span) RED - RED/ORANGE - ORANGE - ORANGE/YELLOW - YELLOW

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x-death Commander Joined: 09 February 2019 Location: Australia Online Status: Offline Posts: 151	Posted: 12 January 2009 at 12:53am
	so would this be correct then? the only reason i haven't applied it to a design is because i'm not very good at illustrations so i'm trying to get better at all the general techniques first then improve on that just so i understand the concept on the techniques first. so was that design right?
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Hapiel Rear Admiral Joined: 30 June 2023 Online Status: Offline Posts: 3266	Posted: 12 January 2009 at 1:44am
	You already do understand the concept of the techniques: Dithering should make rough combinations of 2 colors. But I think that you don't even NEED dithering on your first 10 drawings, just because it looks better without. And even if you do need it, you will learn things much faster. You say you are not good at illustrations. Isn't that a reason to practice THAT? Now for your dithering pattern, you have put a small strokes of dots very close to the 50% part of the next color, which is sort of useless. also you have added dithering only on the right side of everything, which results in one way gradients that stop and start again every time. Compared to the other dithering parts, the 50% dithering is really small, while it should be the most important here. My edit fixes all, but remember, there is no perfect dithering in a random color sequence. There only is in your artwork, but you do not seem to want to make any.
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x-death Commander Joined: 09 February 2019 Location: Australia Online Status: Offline Posts: 151	Posted: 12 January 2009 at 4:46am
	what made you redraw the pattern the way you did? and how did you know how to seperate everything the amount you did?
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Larwick Commander Joined: 18 July 2024 Online Status: Offline Posts: 4015	Posted: 12 January 2009 at 6:16am
	*Originally posted by x-death* what made you redraw the pattern the way you did? and how did you know how to seperate everything the amount you did? From a quick glance i can see all he did was to add the same dither to the left side of every colour as it is on the right side, and also took out some of the pointless far-reaching dither dots. Use your own perceptions to determine how spaced the colours are. When the amount of shades becomes limited to the length of the gradient, you would have to smoothen the dithering and space out the centering of each shade to keep it fluid.

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Hapiel Rear Admiral Joined: 30 June 2023 Online Status: Offline Posts: 3266	Posted: 12 January 2009 at 6:47am
	I know things by looking at 'm, and seeing that something needs a change because it would look better otherwise. I indeed did exactly what larwick said.
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BurningWood Seaman Joined: 23 July 2015 Online Status: Offline Posts: 11	Posted: 09 September 2013 at 6:55am
	Oh, boy, I'm starting from scratch and needed to look this tut up. So, when it comes to dithering, the concensus is the place the dither with three colors by hand, correct? http://www.youtube.com/watch?v=0zAxE8WeiGYhttp://www.youtube.com/watch?v=0zAxE8WeiGY
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