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| Pass your mouse over the snowboarder
to zoom in 1600X showing the pixels that make up the
image. It is a detail of the jacket. |
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| If enlarged to 2 inches you still only
have 100 pixels. So now the image is 50 pixels per
inch. This causes the image to become blurry or pixelated. |
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Bitmapped images are made up of a series
of pixels. Painting/image editing programs such as
Adobe PhotoShop, Corel Photo-Paint, Metcreations Painter
and Paintshop Pro create pixel-based images, also called
bitmapped or raster images. A scanned image is also
this type of file. The amount of pixels per inch(ppi)
is determined at the time of scanning.
Most brochure images are scanned at 300 ppi. If you provide
us with an image from your brochure, we can enlarge it
3 times the size it appears in your brochure. This will
make it 100ppi when enlarged.
Images that appear on your website are 72ppi. We can't
print these images any bigger than they appear on your
site.
If you have a photo you would like to use and it is too
small, it must be
rescanned from the original at the correct pixels per
inch (ppi).
DIGITAL CAMERAS
Below is a guide based on Canon digital cameras listing
the max picture size we can print from the following
mega pixel cameras set on HIGH RESOLUTION. Different
manufacturers may vary. Check your camera's manual for
more info.
2.0 mega pixel camera - 17x22 picture
3.2 mega pixel camera - 28x22 picture
4.0 mega pixel camera - 32x24 picture
5.0 mega pixel camera - 27x36 picture
If the picture was taken on low resolution (72ppi), we
can only print it at
3x5".
All bitmapped images are printed
with a resolution of 100 PPI at 100% of the actual printed
size. In some cases 72 PPI will get by, but remember,
it must be already the size you want it to be when it
is printed.
So let's say we have a 3 x 5 picture of the snowboard
scene and we
want it to be 24 x 40 upon printing. That's an enlargement
of 800%! The
resolution of the scan should be 800 PPI to compensate
for blowing up the
scan 8x. To reduce the file size it should be saved as
a LZW Compressed TIF file. |
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