Hud-projection mod
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Arty if you’re talking about the first photo in post #201 (the one quoted) that’s something DJ posted, look below that on the pictures I submitted. I don’t see violet tint in any of them.
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Arty if you’re talking about the first photo in post #201 (the one quoted) that’s something DJ posted, look below that on the pictures I submitted. I don’t see violet tint in any of them.
All of them have it…
The small ones are off way low resolution and very bad focus and lighting…
If u want take them in photoshop and compare a color outside the hud and inside the hud then u will see the difference in numbers… as of colors in my eyes - monitor settings it’s obvious it’s there. -
AFAIK I’m not color blind… To my eyes there is no violet tint… only darker picture. And the first and last pictures are not low res.
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I dont see any violet tint in any of those pics.
And if you refere to the color diff in the hud and outside the hud, then there is a tiny diff, cause of the coating on the hudglass. -
Don’t listen to the haters and purists Mark It’s totally great.
(just kidding guys)
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only darker picture. And the first and last pictures are not low res.
U said it only darker… what black trinitron? it’s the purple tint, it just doesn’t show in the pics. Have u seen it with your eyes?
Yes those 2 pictures i used as reference, the others are no good at all. -
Arty, no I haven’t tested it with my own eyes yet…, actually last time I was around an F-16 I forgot to do so (had plenty of other things to check ), which is why before deciding on a mod for IT we consulted with pilots… And the fact the picture is darker through the HUD doesn’t mean it’s because of a violet coating which couldn’t t be seen the moment the picture was taken. The whole point is how it looks from the pilot’s POV, and I tried to explain the coated glass looks different from different angles. Many pictures and videos in this thread are not from the pilot’s POV which makes them possibly less accurate and many of them are low res too but people claim that because the HUD looks purple in them that’s how it should be in BMS. After saying that, I still don’t claim that a HUD system where the combiner appears purple to pilot doesn’t exist at all, only that one should be careful with the source material.
What I’m saying is that there is a HUD system without color cast (from the pilot’s POV), only with some darkening of the outside image. It’s not the only option but it is an option. The first picture is my post is directly from the pilot’s POV, in flight with HUD on, high res, in good lighting, and there is no purple tint. And most importantly we have such feedback from people who operate these systems. That’s all we need for IT, and why I asked Fan to create such mod. For other theaters and or F-16 variants things may be different.
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About the HUD tint/coating, that is done to display the green wavelength better on the glass that other colors.
So that green HUD is as crisp as it can get in all kind of light settings.
I have the real HUD glass here and it is just a bit darker and it displays the green color better that other colors.But that hud thingie is another discussion, now its about the pilots POV of the hud projection on the glass, how it looks/fit there, and I think it looks great.
What you modd to have it look better is personally, I want it to be exactly the same as in the real jet if possible.Kukki
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Turkish Block 30’s
I took these shots a long time ago…
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on this u can see the purple tint reflected on the projection glass.
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on this u can see the purple tint reflected on the projection glass.
That color will shift due to light/weather and the angle you look at that glass, ist the light spectra reflection in that curved glass, so you cant just say its violet.
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That color will shift due to light/weather and the angle you look at that glass, ist the light spectra reflection in that curved glass, so you cant just say its violet.
Yeap u can’t clearly as u can’t say that those last HUD pics don’t have purple tint…
But I have never seen violet light spectra reflection at glass on it’s own… Specially that vivid and that much area… the glass down there is curved so it works as a magnifieng lens also…Anyway we are talking based on a photo (3 photos) that can’t help us at all to judge clearly… If the frame was wider and had view without the hud glass then it would be perfect.
For me talking based on those is like talking for water heaters… it’s the same thing… no comparison…
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What im saying here is that it woild be wrong to program a violet tint or any other colors, cause you can see different colors on that Collimator round bend glass depending on the angle you look, outside weather/light condition and if the HUS is on or off. so no fixed programming solution here.
Fx if you turn the FLIR on in the HUD then the colors will be totally different ect.
So buttom line there is no real perfect picture of that hud/Collimator reflection.Not that I want to just disagree in this total, but its not right to program a fixed color there.
@Arty, you are right, I can also see that violet tint, but you just cant program it, I can find many hud pictures where the colors are different.
But the discussion is cool.Here is another pic I have taken. Hud is turned off and its on a F-16 workshop
Kukki
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What im saying here is that it woild be wrong to program a violet tint or any other colors, cause you can see different colors on that Collimator round bend glass depending on the angle you look, outside weather/light condition and if the HUS is on or off. so no fixed programming solution here.
Fx if you turn the FLIR on in the HUD then the colors will be totally different ect.
So buttom line there is no real perfect picture of that hud/Collimator reflection.Not that I want to just disagree in this total, but its not right to program a fixed color there.
@Arty, you are right, I can also see that violet tint, but you just cant program it, I can find many hud pictures where the colors are different.
But the discussion is cool.Here is another pic I have taken. Hud is turned off and its on a F-16 workshop
Kukki
Obvious violet tint… Tricky pic as no common area in the glass and out… also the lighting on the background is playfull… the only safe area I spotted is upper right corner where the glass ends… (not the area with metal on the HUD) there is wall and after it starts the window… there the lighting “seems” uniform and the tint is obvious.
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Obvious violet tint
Arty Arty… It’s obvious there is no violet tint… but since I really appreciate you (seriously ) I took the time to show this more methodically.
I copied parts from a uniform area which can be found inside and outside the HUD.
The reason I copied areas and didn’t just sample one pixel was to make an average in order to eliminate small local changes and jpg compression artifacts. I resampled each part using bicubic resampling to 1x1 pixel to average the color.The resulting pixel with color info:
You can see the RGB values and more importantly hue (“H”) value which reflects the tint or where along the ‘color circle’ that color is (angle, not radius) . For all practical purposes the samples have an identical hue: 30 vs 31, in fact the sample from inside the HUD has a negligible +1 value which is actually AWAY from violet and towards orange. But again value of +1 in insignificant.
Also we can see that the “value” (“V”, meaning brightness) is a bit lower, -4 in the HUD area which indicates a darker area as expected.
So overall this HUD is color neutral and only darkens the image a bit. -
Arty Arty… It’s obvious there is no violet tint… but since I really appreciate you (seriously ) I took the time to show this more methodically.
I copied parts from a uniform area which can be found inside and outside the HUD.
The reason I copied areas and didn’t just sample one pixel was to make an average in order to eliminate small local changes and jpg compression artifacts. I resampled each part using bicubic resampling to 1x1 pixel to average the color.The resulting pixel with color info:
You can see the RGB values and more importantly hue (“H”) value which reflects the tint or where along the ‘color circle’ that color is (angle, not radius) . For all practical purposes the samples have an identical hue: 30 vs 31, in fact the sample from inside the HUD has a negligible +1 value which is actually AWAY from violet and towards orange. But again value of +1 in insignificant.
Also we can see that the “value” (“V”, meaning brightness) is a bit lower, -4 in the HUD area which indicates a darker area as expected.
So overall this HUD is color neutral and only darkens the image a bit.The appreciation is mutual…
But please give me a RAW image or the first hard copy picture and I will prove it to u… this pic is dead for such analysis.
It’s like taking the CERN Camera to photograph Children Party but the other way meaning taking a cell phone 1.2 MP camera and wait to photograph the Higs Particle…
Also it’s focus ain’t on the glass… so the camera light measurement was wrong…
Anything else?
To clear it out… if u tell me u saw it with your own eyes and it’s as u say I believe it and accept it. But those pics haven’t convince me yet… Like anyone cares :lol: …
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The purple you are seeing in the upper right is chromatic abberation from the camera, as can be seen on many pics and especially those from cell phones or other small lenses.
http://en.wikipedia.org/wiki/Chromatic_aberration -
The purple you are seeing in the upper right is chromatic abberation from the camera, as can be seen on many pics and especially those from cell phones or other small lenses.
http://en.wikipedia.org/wiki/Chromatic_aberrationAnd u see purple in this chromatic abberation??? cause I see it out of the chart that affects the phenomena!!!
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Some times it’s there we just don’t see it…
Look at 03:14…
Looks like a block 40 and u can easily distinct the 2 layers of violet colour from the 2 glasses the 40 has on it’s HUD… better on 06:40.
WOW so vivid…
This one also:
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at 06:56 on the vest on the right side. 09:26 very clear on the inside of the canopy at the black area right of the pilot.
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Yo Deejay you’re right, all HUDs have tints. But the thing I’m concerned about is whether you could really see/notice it against bright sky/cloud when you’re up in the air sitting at design eye… I think when viewed from the ACES II, USAF B50 tint won’t be that much pronounced compared to the Greek Viper’s. So my personal opinion is to leave the tint as subtle as possible or not to have it at all.
Anyway, here’s a version made by one of my squadron mates GR. The glass has a pale tint, do you consider it spot on or a bit too much?
http://farm9.staticflickr.com/8093/8358310951_a0c961edc2_o.jpg
Below’s for easy comparison…
http://farm9.staticflickr.com/8507/8354921861_67f52a15ea_o.jpg
Anyway to get a hold of G.R.'s version?