Photoshop
Tip #15 - Large image transition effect for the webThis tip is to be used if you have a very large image to display. First, a quick black and white image is shown, and then the color image is filled in on top of the b&w image. It is a cool effect, but can only be seen with large images. Smaller images are to quick for the transition.
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Start with a large color photograph (this is not
large, just in case you were wondering). Save it
as a jpg file. |
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Duplicate the image and convert it to grayscale
(MODE/GRAYSCALE/OK). Then convert it to a bitmap
(MODE/BITMAP) with "Diffusion Dither"
checked and 75 dpi (screen). Convert it back to
grayscale and save it as a gif. To make the
transition, type the following in your HTML page:
<IMG
LOWSRC="b&w.gif"
SRC="big.jpg">. When you upload this
page and view it, you will notice the b&w
image load first, and them the color jpg on top
of it. It's a pretty cool effect. |
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This section is just for
a cool effect. It's not part of the tip. Go to your color
image and select all and copy. Go back to the
b&w image and convert it back to grayscale
(MODE/GRAYSCALE). With the magic wand tool |
select the a black area (it could also be the
white area) and SELECT/SIMiLAR. Hide the
selection (CTRL+H) and convert it back to an RGB
image (MODE/RGB). Now select EDIT/PASTE INTO and
the color will fill in the black area producing a
cool effect. To make the file size smaller,
convert it to an index color image of 3 or 4
bits.
