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Showing images on HD TV
Do I need to compress the image ?
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I want to show a collection of images on a wide screen HD television, feeding the images from a CD/DVD player using an HDMI interface to the TV. If I record the images as JPEG files on the CD using the natural aspect ratio (square pixels), the DVD player presumes that the image is precompressed  ( as would be a TV frame) and expands the width of the image,  by the factor 4:3 to 16:9.  I could not find any means of setting the DVD player to act otherwise. should I have precompressed the images before recording them ?

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I found the same Margret but Ive now cured it by buying a mass storage device made by Aqua which has HD output ,this will hold lots and lots of slideshows with or without music (or speech if you want it).

lots of advantages like keeping all your pictures on it which saves your PC hard drive space and will fit in your handbag (fits in mine)

price depends on the size of the hard drive you have fitted to it ,mine is 180gb and cost £99

a cheaper way is to find a cheaper DVD which will allow you to set the aspect ratio but even then you are losing quality through the upscaling

Cakey

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Interesting that you found the same problem. I tried to use a DVD /CD because I was travelling to my son's house and did not wish to cart a drive around. 

 I see that TVs are now being sold with SD card slots for "showing still pictures" , but the published literature say nothing about aspect ratios or scaling of such pictures, I shall have to call in at my local dealer and ask for a demo.  Meanwhille I will edit some pictures on my PC to 1080 lines for showing on a HDTV, and hope that the TV will not attempt to resize them.

 A related issue is the use by HDTV and HD camcorders of "deep colour"  (x.v colour or xvYCC) ,  that is, mapping the pixel codes below 16 and above 235 used by TV ,  to colours outside the normal RGB triangle.  (see wikipedia for a detail article on this) . This seems to be in conflict with PC monitors and editors , and still cameras which use all the values (0-255) to represent RGB space.  So I will have to ask whether a TV with a card slot is 'PC compatible' , or whether it is using the TV colour coding as generated by a camcorder. or both.

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Margaret, I was under the impression (I may well be wrong) that only Blue Ray DVD players were true HD and that a conventional DVD player wouldn't put out HD. I use Proshow Gold and set it for 16:9 and Pal when I create the DVD and haven't had a problem yet with it displaying properly on any TV from projection to plasma. The biggest challenge is always portrait shots as they tend to look a little odd on wide screen. Check out your creation software settings it may be something innocuous here that is causing your problem.
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Colin Im sure your right about the Blu Ray which is why I wont use my upscaling...

also having the benifit of P in P on my plasma I had the Aqua along side the upscaling

this is another advantage of something like the Aqua .......not everyone will have Blu Ray although getting cheaper all the time

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I was hoping to show JPEG coded still images, not MPEG video,  which were copied to a DVD or CD.  The DVD player  used read the files as "data" , not video.  The connection to the TV was HDMI, but I do not know what resolution was used in the transfer, but somehow the aspect ration was changed in the process.  Next time I will precompress the images so that the result is correct when displayed.

Are the images being stretched by the TV itself though? Are there options within the manual to flick between aspect ratio modes? I don't know if it will solve the problem, but you're looking to essentially not stretch them images - merely represent them pixel for pixel (sort of).

Sounds like you need a camera with an HDMI out socket...But that's an expensive option.

Oh also, the 'showing in HD' thing... Basically you could have an 'HD' image on a CD, DVD, Blu Ray disc or any device. It's how you then transmit that information to the screen itself to ensure it displays at full resolution.

For example, if I had a blu ray player and a 1080p HD TV but connected them with a crappy scart plug that you would find with older TVs then you're not allowing for the fullest amount of information to be transmitted between devices. You'd need an HDMI cable (or equivalent) for that.

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two little boxes that I use that can help with some installations..........HERE and HERE

and are very reasonably priced

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Right sorry if I'm not getting this. We haven't got a HD telly but we have a 42inch widescreen (not flat pannel but old style, like CRT's. Took 4 people to lift it out of the box )

What I've found works is adding a smallish frame to make the images sit inside the aspect ratio of the TV screen.

Again I'm sorry if I'm missing the point.


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