Removing Dust and Scratches
The dust filter usually softens the
whole image and still misses the biggest
chunks of dirt. This trick solves both
problems, and it's faster than using the
rubber stamp tool. With this trick we
apply a much heavier dirt filter to
cover even the big chunks, but we only
apply it to the dirty parts of the image
so it doesn't affect the sharpness or
1.) Make a duplicate layer of your
original. (Drag the BACKGROUND layer
over the new layer icon on the bottom of
the layers pallet.)
2.) Unclick the eyeball next to the top
layer and select the bottom layer. This
way we can see what we're going to do to
the bottom layer.
3.) Apply a heavy dust and scratch
filter to the bottom layer. (FILTER >
NOISE > DUST AND SCRATCHES.) Don't worry
about losing detail, just make sure it's
set strong enough to cover the biggest
4.) Reclick the eyeball next to the top
layer and select the top layer. Your
image now looks like it did to start.
5.) Use the eraser tool to cut through
the sharp top layer to expose the
filtered layer below in the spots with
dirt. A more advanced way to do the same
thing is to use a layer mask.
This way you can spot out the dirt
quickly and not affect anything else
When you image is rough in
appearance, scanned from an offset or
lithoprinted image, you can apply this trick
to smooth the scanned color pick ups on your
FILTER>NOISE>Median Filter to apply a 'blur'
effect. This is best seen when working on
big size dimension images. TIP: 1 or 2 pixel
is adequate to remove line screen, offset
dot size or color separation/dot render of
magazine photos etc.
We do not use texts in
Photoshop, preferring to use our drawing
programs at QuickSmart.
A Method of using
Gaussian Blur combined with Duplicate Layer
TIP: Also, if your
original image is of poor quality, too small
or rough in appearance, try DUPLICATE LAYER>
ROTATE 1°>FILTER> GAUSSIAN BLUR 1°, then ,
apply transparency value 5% of the
duplicated and manipulated layer, then merge
visible. The almost transparent layer will
fill any rough or vacant pixels with a
softer color, giving you a better image.
NOTE: We never use text in this process,
preferring to make our photo signs that have
text in our drawing programs using Vector
This will remove the
pixilation of the image efficiently.
Also, adjust the image
screen resolution at various stage of above.
This will also help. Because we make signs,
the time at which we adjust resolution for
signage output varies dependant on the
original quality of image supplied. Using
this method we have created great graphics
onto large signs with no adverse visual