Picture Size vs Resolution?

My cam can take different picture sizes:

2304 X 1728 / 2304 X 1536 (3:2) / 1600 X 1200 / 1280 X 960 / 640 X 480
pixels

It also has 3 resolutions:

Fine/Normal/Economy

Assuming i can reduce the physical size of a photo & yet retain the
quality - What's difference between picture size (ammount of pixels) and
resolution?

is this really just 2 different methods of achieving the same thing?
(picture quality)

the best thing to do is to try it yourself using image processing software

try irfanview (look for it with google) it is free software and you should
be able to resize images using different JPEG levels

Once you have resized at different qualities review ur images

Arts


"JethroUK©" wrote in message
...
My cam can take different picture sizes:

2304 X 1728 / 2304 X 1536 (3:2) / 1600 X 1200 / 1280 X 960 / 640 X 480
pixels

It also has 3 resolutions:

Fine/Normal/Economy

Assuming i can reduce the physical size of a photo & yet retain the
quality - What's difference between picture size (ammount of pixels) and
resolution?

is this really just 2 different methods of achieving the same thing?
(picture quality)

the best thing to do is to try it yourself using image processing software

try irfanview (look for it with google) it is free software and you should
be able to resize images using different JPEG levels

Once you have resized at different qualities review ur images

Arts


"JethroUK©" wrote in message
...
My cam can take different picture sizes:

2304 X 1728 / 2304 X 1536 (3:2) / 1600 X 1200 / 1280 X 960 / 640 X 480
pixels

It also has 3 resolutions:

Fine/Normal/Economy

Assuming i can reduce the physical size of a photo & yet retain the
quality - What's difference between picture size (ammount of pixels) and
resolution?

is this really just 2 different methods of achieving the same thing?
(picture quality)

"Arty Phacting" wrote in message
news
the best thing to do is to try it yourself using image processing software

try irfanview (look for it with google) it is free software and you
should
be able to resize images using different JPEG levels

Easier still, just go to www.irfanview.com

Size and resolution are actually the same thing. The exact meaning of each
term will vary depending on your camera's manufacturer and how they choose
to label things, but my best guess would be that Fine/Normal/Economy refer
to different levels of JPEG compression - Fine will give the least
compression but highest quality, Economy the most compression but lower
quality, and Normal would be somewhere in the middle of those two.

--
"Few people are capable of expressing with equanimity opinions which differ
from the prejudices of their social environment. Most people are even
incapable of forming such opinions."
-- Albert Einstein


"JethroUK©" wrote in message
...
My cam can take different picture sizes:

2304 X 1728 / 2304 X 1536 (3:2) / 1600 X 1200 / 1280 X 960 / 640 X 480
pixels

It also has 3 resolutions:

Fine/Normal/Economy

Assuming i can reduce the physical size of a photo & yet retain the
quality - What's difference between picture size (ammount of pixels) and
resolution?

is this really just 2 different methods of achieving the same thing?
(picture quality)

"JethroUK©" wrote in :

My cam can take different picture sizes:

2304 X 1728 / 2304 X 1536 (3:2) / 1600 X 1200 / 1280 X 960 / 640 X 480
pixels

Those numbers (together with printing size) determine the resolution.

It also has 3 resolutions:

Fine/Normal/Economy

Those are not resolutions. Those are JPEG quality, i.e. amount of compression.
Are you sure that your camera calls those "resolutions"?

Assuming i can reduce the physical size of a photo & yet retain the quality

You can't.

- What's difference between picture size (ammount of pixels) and resolution?

Giving the misunderstanding above, this question has no meaning.


/Roland

"JethroUK©" wrote in :

My cam can take different picture sizes:

2304 X 1728 / 2304 X 1536 (3:2) / 1600 X 1200 / 1280 X 960 / 640 X 480
pixels

Those numbers (together with printing size) determine the resolution.

It also has 3 resolutions:

Fine/Normal/Economy

Those are not resolutions. Those are JPEG quality, i.e. amount of compression.
Are you sure that your camera calls those "resolutions"?

Assuming i can reduce the physical size of a photo & yet retain the quality

You can't.

- What's difference between picture size (ammount of pixels) and resolution?

Giving the misunderstanding above, this question has no meaning.


/Roland

"JethroUK©" wrote in message ...
My cam can take different picture sizes:

2304 X 1728 / 2304 X 1536 (3:2) / 1600 X 1200 / 1280 X 960 / 640 X 480
pixels

These are resolution numbers


It also has 3 resolutions:

Fine/Normal/Economy

These represent the number of bits used to encode each (colored)
pixel value.


Assuming i can reduce the physical size of a photo & yet retain the
quality - What's difference between picture size (ammount of pixels) and
resolution?

Its a two dimensional issue: how many pixels are there, and how much
detail is there in each pixel.

is this really just 2 different methods of achieving the same thing?
(picture quality)

Two different aspects of encoding image detail.

"JethroUK©" wrote in message ...
My cam can take different picture sizes:

2304 X 1728 / 2304 X 1536 (3:2) / 1600 X 1200 / 1280 X 960 / 640 X 480
pixels

These are resolution numbers


It also has 3 resolutions:

Fine/Normal/Economy

These represent the number of bits used to encode each (colored)
pixel value.


Assuming i can reduce the physical size of a photo & yet retain the
quality - What's difference between picture size (ammount of pixels) and
resolution?

Its a two dimensional issue: how many pixels are there, and how much
detail is there in each pixel.

is this really just 2 different methods of achieving the same thing?
(picture quality)

Two different aspects of encoding image detail.

Fine/Normal/Economy

These represent the number of bits used to encode each (colored)
pixel value.

No, they are all 8 bits/channel ... these represent different amounts of jpeg
compression.