how can i change the pixels of a picture.

[helpneeded]

the pixels of my picture are too big, and do i make them smaller?

 

[John Inzer]

the pixels of my picture are too big, and do i make them
smaller?

====================================
Are we discussing Microsoft Publisher? Which
version?

Do you mean the image looks pixelated (blocky)?

Or do you just wish to resize the image?

 

[JoAnn Paules]

Although it's not Publisher-related, I'd suggest finding out what the
capabilities of your photo-editing software are.

 

[Mike Koewler]

the pixels of my picture are too big, and do i make them smaller?

Use the crop tool? Put them on the Jenny Craig diet? Resample the image
in a photo app? Hit the zoom out button so they look smaller?

Seriously, are you competing in the idiotic post of the year award? But
maybe this will help:

One of the most important pixel attributes that changes with pixel size
is the ability to capture photons. Pixels capture photons proportional
to pixel area. More photons captured in an exposure time means lower
noise. This is because most common light sources emit photons randomly,
and the statistics associated with a random process of this kind are
such that the uncertainty in the number of photons in a sample is equal
to the square root of the total number of photons captured. This means
the signal to noise ratio increases directly with an increase pixel
pitch, so if the pixel size doubles from 4 um to 8 um, the signal to
noise ratio limited by the random arrival of photons (referred to as
photon shot noise) will also double.

Hopefully this answers your question.

Mike

 

[John Inzer]

Use the crop tool? Put them on the Jenny Craig diet?
Resample the image in a photo app? Hit the zoom out
button so they look smaller?
Seriously, are you competing in the idiotic post of the
year award? But maybe this will help:

One of the most important pixel attributes that changes
with pixel size is the ability to capture photons. Pixels
capture photons proportional to pixel area. More photons
captured in an exposure time means lower noise. This is
because most common light sources emit photons randomly,
and the statistics associated with a random process of
this kind are such that the uncertainty in the number of
photons in a sample is equal to the square root of the
total number of photons captured. This means the signal
to noise ratio increases directly with an increase pixel
pitch, so if the pixel size doubles from 4 um to 8 um,
the signal to noise ratio limited by the random arrival
of photons (referred to as photon shot noise) will also
double.
Hopefully this answers your question.

Mike

=====================
May the farce be with you.

 

[Ed Bennett]

the pixels of my picture are too big, and do i make them smaller?

Yes, it would be very convenient to have a magical "Add detail" command that
increases the resolution of a picture.

The second image at http://www.uktsupport.co.uk/humour/options.htm is
probably the menu where it would appear on.

Seriously, I suggest you do some research on the way raster images work.

 

[James Hahn]

I think you have _won_ the idiotic post of the year award.

If the uncertainty in the number of photons in a sample is equal (I think
you mean proportional) to the square root of the total number of photons
captured, then this means the signal to noise ratio will not change with an
increased pixel pitch.

The area of the pixel (and therefore photons captured) is increasing with
the square of the pitch, but the uncertainty factor is increasing with the
square root of the number of photons, so the uncertainty is in lock step
with the pitch (which is exactly what experience would tell you).

Before calling other people idiots you should take note of what you can
actually observe on your screen..
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