Digital cameras: Camera Pixels vs LCD,Plazma, DLP Pixels
Camera Pixels vs LCD,Plazma, DLP Pixels
by Howie_lynn - 2/18/09 10:57 AMHi,
My Nixon has a pixel density of 3008 x 2000 as listed in the Nixon manual. It has 6.1 million pixels.
My Sharp 26 inch LCD has a pixel density of 1366 x 768 x 3 dots.
When a jpg picture, in basic format large, is displayed on the Sharp, the image has two horizontal black bands.
The microsoft screen saver also displays the same size image with two black horizontal bands on each side of the monitor display. The monitor is a VP2250wb Viewsonic. The VP2250 has a resolution of 1680x1050.
Since the jpg image resolution is sufficient to fill both displays to twice their size why the black bands?
The jpg image is also listed as 3008 x 2000 in Photoshop.
Thanks
Howie
You can ask
by R. Proffitt
- 2/18/09 11:28 AM
In reply to: Camera Pixels vs LCD,Plazma, DLP Pixels by Howie_lynn
But you'll have to corner the programmer that authored the JPEG renderer.
Did you try a resize of the JPEG to match that display?
Bob
Look at the aspect ration
by kalel33 - 2/18/09 11:31 AM In reply to: Camera Pixels vs LCD,Plazma, DLP Pixels by Howie_lynnIf you have a wide screen then you have a 16:4 aspect ratio and the photo has a 3:2 ratio. Off course there's going to be black bars, unless you crop the photo to a 16:4 ratio.
Display
by snapshot2 - 2/18/09 1:39 PM
In reply to: Camera Pixels vs LCD,Plazma, DLP Pixels by Howie_lynn
It depends upon what program you are using to display the images.
Most programs will try to fit the picture onto the display device.
If the picture is not the same shape (aspect ratio) as the display there will be either black vertical or horizontal bands.
If the program will let you display the picture at 100%, you will have a picture larger than your display.
So you will find horizontal/vertical scroll bars so that you can scroll the picture across the display.
Some programs like Irfanview will also let you fit the image to the vertical size or the horizontal size of the display.
The portion that will not fit on the display will have a scroll bar so that you can scroll the picture.
.......
If you want the picture to exactly fit the display you have to crop the picture to the correct shape (aspect ratio) for that display device.
What software are you using to show the pictures on your display devices?
..
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Camera Pixels vs LCD Pixels
by Howie_lynn - 2/18/09 3:12 PM In reply to: Display by snapshot2
Hi Display,
I use a Playstation 3 connected to the Sharp HD LCD TV with an HDMI interface. I use a SD card to import the images into the Playstation.
So I have not affected the images prior to the Playstation.
I'll use Photoshop to change the Nikon Aspect Ratio from 3008 x 2000 to the Sharp Aspect Ratio of 1366 x 768. This will change the Height proportions by 140 which probably won't matter.
I let you know what happens. If this work my 60 inch DLP Sony is next.
The pictures displayed on the Sony are just incredable. But I don't, as yet, have a Playstation for the Sony. So I use the Sony SD slot which doesn't have the bell and whistles of the PS3. But the pic quality is just as good. Until you see this you won't believe it.
I'll keep in touch,
Thanks for the help,
Howie
Camera Pixels vs LCD Pixels
by HowieLynn - 2/18/09 7:41 PM In reply to: Camera Pixels vs LCD Pixels by Howie_lynnHi Display,
Your suggestion was correct. Changing the Aspect Ratio of the jpg images to match the Aspect Ratio of the Sharp Lcd and Viewsonic 2250 produced an image that displayed full screen on both the Sharp and the 2250.
Thanks again,
Howie
HD television
by snapshot2 - 2/18/09 8:58 PM
In reply to: Camera Pixels vs LCD Pixels by HowieLynn
I have been making slide shows for several years now.
The got an update to my slide show program which lets me make High Definition slide shows.
I have a BluRay burner and made a trial slide show on BluRay media.
I used the slide show to set the aspect ratio to 1920 x 1080.
Therefore I didn't have to presize the images.
I used the slide show Ken Burns (pan and zoom) features to animate the slides.
Used a Playstation 3 BluRay player attached to a LG 42 inch plasma television.
Excellent results.
I then tried burning the same slide show to standard DVD media.
I played the DVD on a standard DVD player (with upscaling capabilities).
Played on the same LG 42 inch plasma television.
Excellent results.
Conclusion ... for High Definition slide shows, you don't need a BluRay burner or player.
..
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