15 February 2007, 13:56 | #1 |
Lesser Talent
Join Date: Jan 2003
Location: UK
Age: 42
Posts: 7,957
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Multiple HAM8 pictures?
Not really a 'problem' as such but I was quite interested in doing this...
I was wondering what the likelyhood of being able to show two different images in HAM8 mode at once was? After displaying the first, would then displaying the second picture (as a sort of picture-in-picture) alter the original image on display? |
15 February 2007, 14:00 | #2 | ||
Thalion Webshrine
Join Date: Jan 2004
Location: Oxford
Posts: 14,468
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Quote:
Quote:
To minimise fringing you would have to calculate the position of your 2nd picture carefully and manipulate the colours of edge pixels appropriately. If this is for a demo, two fixed pictures and a fixed location you could do it off-line. If the 2nd picture has to move or if it is for an application where the pictures are variable then you'd have to calculate it realtime. If it is more of a split screen, one in the top half of the screen, the other in the bottom half then there is no problemo. Last edited by alexh; 15 February 2007 at 14:09. |
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15 February 2007, 14:08 | #3 |
Lesser Talent
Join Date: Jan 2003
Location: UK
Age: 42
Posts: 7,957
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ah I see....
So the HAM picture utilises the two(?) left pixels to try and create the current pixel? Is that why a border would help? I'd probably be overlaying a much smaller picture over the top of a larger picture so that most of the background picture is still mostly visible. If the whole process is going to be too slow to update on a frequent basis it's probably not worth me looking in to. |
15 February 2007, 14:11 | #4 | |
Thalion Webshrine
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15 February 2007, 14:41 | #5 |
Lesser Talent
Join Date: Jan 2003
Location: UK
Age: 42
Posts: 7,957
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No I wasn't thinking of mpeg or avi.
I was thinking of a HAM8 backdrop and when you highlight different menu items they show a different screengrab of each item. So it's not THAT frequent |
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