Timeline for Gradient "white mark" optical illusion
Current License: CC BY-SA 3.0
20 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 7, 2016 at 9:16 | vote | accept | Dave Haigh | ||
| Dec 4, 2016 at 1:28 | answer | added | Rafael | timeline score: 3 | |
| Dec 3, 2016 at 18:52 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Nov 3, 2016 at 17:59 | answer | added | BrianC | timeline score: 0 | |
| Nov 3, 2016 at 14:00 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Oct 4, 2016 at 13:08 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Sep 4, 2016 at 13:01 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Aug 5, 2016 at 12:56 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jul 11, 2016 at 8:08 | comment | added | Dave Haigh | @joojaa when zooming in and using the eye dropper tool, it is definitely a light 'greenish'. there is no 'white'. hence why I ask about why this illusion occurs. screenshot diagram 2 and zoom in with Photoshop. you can see it actually blends from a dark to light green. | |
| Jul 6, 2016 at 16:44 | comment | added | joojaa | @DaveHaigh given that i can not see originals its hard to say. I really doubt its a mach band. I can not debug this very efficiently since i have to work trough your understanding of things and you do not understand which is why you ask. It sure looks like a conflation problem. It does not at all look like a illusion as it would be greenish. | |
| Jul 6, 2016 at 16:05 | comment | added | Dave Haigh | @joojaa from my understanding of that question, this is a different problem. that is about two shapes adjoining to each other and leaving a gap. my shadow layer and background are completely overlapping so cant see the similarities, unless ive missed something? | |
| Jul 6, 2016 at 12:46 | comment | added | joojaa | this is most likely the same conflation problem as in vector graphics | |
| Jul 6, 2016 at 12:10 | comment | added | Dave Haigh | Yep. That was my first thought. It is definitely 0,0,0. | |
| Jul 6, 2016 at 12:09 | comment | added | Luciano | Are you sure the right side of the gradient is RGB(0,0,0,0) and not RGB(255,255,255,0)? | |
| Jul 6, 2016 at 11:39 | answer | added | Vincent | timeline score: 0 | |
| Jul 6, 2016 at 11:35 | comment | added | Dave Haigh | It's a separate layer over the top | |
| Jul 6, 2016 at 11:34 | comment | added | Vincent | How did you make the gradient? Is it a layer overlaid over the background, or did you use layer effects? | |
| Jul 6, 2016 at 11:31 | history | edited | Vincent |
retag
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| Jul 6, 2016 at 11:31 | comment | added | Dave Haigh | This is actually used as a shadow image saved out as a PNG though, and over laid on top of a solid background within an iOS app. That's where I first noticed it. I recreated the effect in Photoshop for the image above. | |
| Jul 6, 2016 at 11:13 | history | asked | Dave Haigh | CC BY-SA 3.0 |