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AnswerRe: Reference CalculateRamp - How to derive entry arguments from the existing Gamma Ramp Pin
Keith Davis3-Sep-16 6:47
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AnswerRe: Reference CalculateRamp - How to derive entry arguments from the existing Gamma Ramp Pin
Keith Davis3-Sep-16 7:11
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AnswerRe: Reference CalculateRamp - How to derive entry arguments from the existing Gamma Ramp Pin
leon de boer4-Sep-16 3:54
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GeneralRe: Reference CalculateRamp - How to derive entry arguments from the existing Gamma Ramp Pin
Keith Davis4-Sep-16 9:10
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GeneralRe: Reference CalculateRamp - How to derive entry arguments from the existing Gamma Ramp Pin
leon de boer4-Sep-16 22:36
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GeneralRe: Reference CalculateRamp - How to derive entry arguments from the existing Gamma Ramp Pin
Keith Davis5-Sep-16 4:38
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GeneralRe: Reference CalculateRamp - How to derive entry arguments from the existing Gamma Ramp Pin
leon de boer5-Sep-16 6:06
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GeneralRe: Reference CalculateRamp - How to derive entry arguments from the existing Gamma Ramp Pin
Keith Davis5-Sep-16 8:23
MemberKeith Davis5-Sep-16 8:23 
Hi Leon,

I actually haven't examined the Windows Color Management; and perhaps I should look into this.

However, I would still have to meet the specifications laid down by the IHO.

These specifications are fairly strict. When the ECDIS is set up it has to be inspected and tested with an instrument that reads the color values directly from the display screen; and they must meet specifications or else adjustments must be made to the [X,Y,L] color tables (and/or the hardware). I have had to build these testing scenarios and conversion functions into the software. Additional routines for the mariner to do self testing at sea are also a requirement (color comparison charts and the grey scale test that I mentioned previously).

To say the least, meeting these specifications has been fairly demanding. There are several thousand pages in total; and the display requirements come up again and again through out.

Getting these Brightness, Contrast, Level, and Gamma settings from the gamma ramp array has just been a minor setback in the grand scheme of things, but sooner or later I'll figure it out. I may be close to being able to extract the current gamma setting - working on it...

CheersSmile | :)
GeneralRe: Reference CalculateRamp - How to derive entry arguments from the existing Gamma Ramp Pin
leon de boer5-Sep-16 18:55
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GeneralRe: Reference CalculateRamp - How to derive entry arguments from the existing Gamma Ramp Pin
Keith Davis5-Sep-16 19:55
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GeneralRe: Reference CalculateRamp - How to derive entry arguments from the existing Gamma Ramp Pin
Keith Davis8-Sep-16 9:31
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AnswerRe: Reference CalculateRamp - How to derive entry arguments from the existing Gamma Ramp - My Solution Pin
Keith Davis7-Sep-16 10:30
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QuestionPrinter Control Pin
Bram van Kampen27-Aug-16 15:38
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Richard MacCutchan27-Aug-16 20:31
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