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717 Resolution Questions

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RalphF

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I have the 717 and my question (I think) applies to any digital camera because it is a question about resolution:

I notice that when I choose a high resolution setting, the image comes out larger - that is, when I open the image in my viewer, it fills the screen and the scroll bars are enabled and I have to scroll up and down and left and right to see the entire image.

When I chose a low resolution setting and open the image in my viewer, I can see the entire image on the screen and there are no scroll bars as none are needed.

My question is this: is the pixel count density the same for both image resolutions? and therefore, the only difference with the higher resolution is that the image is bigger because of the overall higher total pixel count?

In other words, is the lowest resolution image a sub-part of the highest resolution capability - so for example, if the highest resolution is 1000 x 1000 and the lowest is 250 x 250 is the lower 250 x 250 "cut out" of the larger 1000 x 1000 resolution?

Thanks...

Ralph
 
RalphF said:
I have the 717 and my question (I think) applies to any digital
camera because it is a question about resolution:

I notice that when I choose a high resolution setting, the image
comes out larger - that is, when I open the image in my viewer, it
fills the screen and the scroll bars are enabled and I have to
scroll up and down and left and right to see the entire image.

When I chose a low resolution setting and open the image in my
viewer, I can see the entire image on the screen and there are no
scroll bars as none are needed.

My question is this: is the pixel count density the same for both
image resolutions? and therefore, the only difference with the
higher resolution is that the image is bigger because of the
overall higher total pixel count?

In other words, is the lowest resolution image a sub-part of the
highest resolution capability - so for example, if the highest
resolution is 1000 x 1000 and the lowest is 250 x 250 is the lower
250 x 250 "cut out" of the larger 1000 x 1000 resolution?

Thanks...

Ralph
Click to expand...
Somewhere in your viewer there is a command to have the viewer show the pic at full rez and fill the window without having to scroll.
--
http://www.pbase.com/allan_mann
PBase supporter.

Olympus C2100 UZI.. Kodak DX4330...Oly B300 Canon A40.. Sony DSC F717...Fuji 2600
 
A CCD captures lower resolution by grouping pixels together. The icon on the camera sort of shows that.
 
RalphF said:
I have the 717 and my question (I think) applies to any digital
camera because it is a question about resolution:

I notice that when I choose a high resolution setting, the image
comes out larger - that is, when I open the image in my viewer, it
fills the screen and the scroll bars are enabled and I have to
scroll up and down and left and right to see the entire image.
Click to expand...
Try Irfanview. http://www.irfanview.com
It will resize the image so that it fits the screen.
RalphF said:
When I chose a low resolution setting and open the image in my
viewer, I can see the entire image on the screen and there are no
scroll bars as none are needed.

My question is this: is the pixel count density the same for both
image resolutions? and therefore, the only difference with the
higher resolution is that the image is bigger because of the
overall higher total pixel count?

In other words, is the lowest resolution image a sub-part of the
highest resolution capability - so for example, if the highest
resolution is 1000 x 1000 and the lowest is 250 x 250 is the lower
250 x 250 "cut out" of the larger 1000 x 1000 resolution?
Click to expand...
If I understand you.......and that seems doubtful.
No.
The lower resolution image is made by combining and averageing pixels together.

In general you do not want to take low res images unless you just desperately need the space on the stick to take a bunch of pictures. Or you just absolutely know that you'll only use the image on the web exclusively. Low res images don't print well. And you never know when you'll get that one in a thousand images.
RalphF said:
Thanks...

Ralph
Click to expand...
Hope that helps.............LM

--



Your not going to take my picture with that Nikon are you?
 
RalphF said:
I have the 717 and my question (I think) applies to any digital
camera because it is a question about resolution:

I notice that when I choose a high resolution setting, the image
comes out larger - that is, when I open the image in my viewer, it
fills the screen and the scroll bars are enabled and I have to
scroll up and down and left and right to see the entire image.

When I chose a low resolution setting and open the image in my
viewer, I can see the entire image on the screen and there are no
scroll bars as none are needed.

My question is this: is the pixel count density the same for both
image resolutions? and therefore, the only difference with the
higher resolution is that the image is bigger because of the
overall higher total pixel count?

In other words, is the lowest resolution image a sub-part of the
highest resolution capability - so for example, if the highest
resolution is 1000 x 1000 and the lowest is 250 x 250 is the lower
250 x 250 "cut out" of the larger 1000 x 1000 resolution?

Thanks...

Ralph
Click to expand...
Don't know if this will help.

Your monitor is set at a certain pixel resolution (mine is 800x600). Therefore I believe that pictures fitting that dimension will show full screen without scroll bars. If your picture exceeds the mintor dimension, then scroll bars appear.

I believe that some viewers allow you to adjust the viewing resolution by either zooming/scaling through adjusting the viewing setttings.
 
Check this link:

http://graphicssoft.about.com/gi/dynamic/offsite.htm?site=http://home.att.net/%257Ecthames/Printer1.htm

and this:

http://graphicssoft.about.com/library/weekly/aa111799p4.htm?rnk=r2&terms=printer+dpi

Just wanted to caution you that you should NEVER have the idea that because it looks big on the screen.. it'll look just as good and as big on print. This is a common misconception to ppl. Remember that once you loose the res (dots).. u loose em forever.

The smaller images sizes are achieved by throwing away dots so when displaying in smaller sizes u won't really notice the diff but if u enlarge it again u'll see it get pixelated. = )

T
RalphF said:
I have the 717 and my question (I think) applies to any digital
camera because it is a question about resolution:

I notice that when I choose a high resolution setting, the image
comes out larger - that is, when I open the image in my viewer, it
fills the screen and the scroll bars are enabled and I have to
scroll up and down and left and right to see the entire image.

When I chose a low resolution setting and open the image in my
viewer, I can see the entire image on the screen and there are no
scroll bars as none are needed.

My question is this: is the pixel count density the same for both
image resolutions? and therefore, the only difference with the
higher resolution is that the image is bigger because of the
overall higher total pixel count?

In other words, is the lowest resolution image a sub-part of the
highest resolution capability - so for example, if the highest
resolution is 1000 x 1000 and the lowest is 250 x 250 is the lower
250 x 250 "cut out" of the larger 1000 x 1000 resolution?

Thanks...

Ralph
Click to expand...
 
Your monitor (with ms windows) renders at 96 pixels per inch (PPI).

So if your image is 960 pixels wide, the picture will be 10 inches wide on your monitor. The printed image size will depend the setting you use for PPI.

Some viewers/browers do "autosizing" to fit in the window. I guess it throws pixels out to do this.

ken
RalphF said:
I have the 717 and my question (I think) applies to any digital
camera because it is a question about resolution:

I notice that when I choose a high resolution setting, the image
comes out larger - that is, when I open the image in my viewer, it
fills the screen and the scroll bars are enabled and I have to
scroll up and down and left and right to see the entire image.

When I chose a low resolution setting and open the image in my
viewer, I can see the entire image on the screen and there are no
scroll bars as none are needed.

My question is this: is the pixel count density the same for both
image resolutions? and therefore, the only difference with the
higher resolution is that the image is bigger because of the
overall higher total pixel count?

In other words, is the lowest resolution image a sub-part of the
highest resolution capability - so for example, if the highest
resolution is 1000 x 1000 and the lowest is 250 x 250 is the lower
250 x 250 "cut out" of the larger 1000 x 1000 resolution?

Thanks...

Ralph
Click to expand...
 
Being a bit pedantic here, but that's not true (or not necessarily true).

The pixels-per-inch (ppi) of your monitor depends purely on the monitor's size and the selected resolution.
scorch said:
Your monitor (with ms windows) renders at 96 pixels per inch (PPI).

So if your image is 960 pixels wide, the picture will be 10 inches
wide on your monitor. The printed image size will depend the
setting you use for PPI.
Click to expand...
 
There is no pixel density for the image - they are just x pixels wide by y pixels high. There is no inherant size (say 6x4 inches). A pixel desnsity (ppi or dpi) is effectively 'created' when you choose to print or display the image at a specific size.

In your example (a 250x250 image from a 1000x1000 sensor), I think the camera uses the entire sensor, but the combines the sensore pixels to create the output image. In your eample, it woud use a 2x2 (4 pixel) square to generate each output pixel.

IE 6 and other programs can/will temporarily resize an image that won't fit on your screen at the current resolution so that you can see it all. I like ACDSee as an image browser. It has an option to strech or shirink and image so that it fills the screen when you view it.

Steve
RalphF said:
I have the 717 and my question (I think) applies to any digital
camera because it is a question about resolution:

I notice that when I choose a high resolution setting, the image
comes out larger - that is, when I open the image in my viewer, it
fills the screen and the scroll bars are enabled and I have to
scroll up and down and left and right to see the entire image.

When I chose a low resolution setting and open the image in my
viewer, I can see the entire image on the screen and there are no
scroll bars as none are needed.

My question is this: is the pixel count density the same for both
image resolutions? and therefore, the only difference with the
higher resolution is that the image is bigger because of the
overall higher total pixel count?

In other words, is the lowest resolution image a sub-part of the
highest resolution capability - so for example, if the highest
resolution is 1000 x 1000 and the lowest is 250 x 250 is the lower
250 x 250 "cut out" of the larger 1000 x 1000 resolution?

Thanks...

Ralph
Click to expand...
 
TFT, ultra little pixels, watchable from all sides without changing of colors. 8.500 eurodollars at moment, I think 5-7 years from now for normal price.
RalphF said:
I have the 717 and my question (I think) applies to any digital
camera because it is a question about resolution:

I notice that when I choose a high resolution setting, the image
comes out larger - that is, when I open the image in my viewer, it
fills the screen and the scroll bars are enabled and I have to
scroll up and down and left and right to see the entire image.

When I chose a low resolution setting and open the image in my
viewer, I can see the entire image on the screen and there are no
scroll bars as none are needed.

My question is this: is the pixel count density the same for both
image resolutions? and therefore, the only difference with the
higher resolution is that the image is bigger because of the
overall higher total pixel count?

In other words, is the lowest resolution image a sub-part of the
highest resolution capability - so for example, if the highest
resolution is 1000 x 1000 and the lowest is 250 x 250 is the lower
250 x 250 "cut out" of the larger 1000 x 1000 resolution?

Thanks...

Ralph
Click to expand...
 
RalphF said:
I have the 717 and my question (I think) applies to any digital
camera because it is a question about resolution:

I notice that when I choose a high resolution setting, the image
comes out larger - that is, when I open the image in my viewer, it
fills the screen and the scroll bars are enabled and I have to
scroll up and down and left and right to see the entire image.

When I chose a low resolution setting and open the image in my
viewer, I can see the entire image on the screen and there are no
scroll bars as none are needed.

My question is this: is the pixel count density the same for both
image resolutions? and therefore, the only difference with the
higher resolution is that the image is bigger because of the
overall higher total pixel count?

In other words, is the lowest resolution image a sub-part of the
highest resolution capability - so for example, if the highest
resolution is 1000 x 1000 and the lowest is 250 x 250 is the lower
250 x 250 "cut out" of the larger 1000 x 1000 resolution?

Thanks...

Ralph
Click to expand...
Maybe this will help. Instead of thinking screen resolution, think screen size. If your screen is set to 800X600, that is the size of the screen in pixels. If your picture resolution is higher than 800X600 than the picture won't fit and you get scroll bars.

This assumes that you are not using software that resizes the picture to fit within the available window size.
--
Brooks
F717, HP315, Minolta Maxxum 5000i
http://www.pbase.com/brooks_p

'We should be careful to get out of an experience only the wisdom that is in it -- and stop there; lest we be like the cat that sits down on a hot stove-lid. She will never sit down on a hot stove-lid again -- and that is well; but also she will never sit down on a cold one any more.' Pudd'nhead Wilson
 
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