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High Quality Zoom, provided by Photo-Lux
Displaying
of the zoomed images on the screen assumed that image will be resized (recalculated)
in the memory of the PC, and, after that, a resized copy of the image will be
displayed on the screen. In many cases a resized copy of the image can contain
a lot of distortions - to smooth the jagged edges and to reduce the noise artifacts
special filters should be used (smoothing or antialiasing technique). A simple
example can illustrate it:
| Original
Image. | Zoom 75%. A lot of jagged edges
can be easily found. Most of graphics software produces the same poor zooming
quality. | High Quality Zoom 75% provided
by "PhotoLux" using Lanczos3 zoom filter.
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There are 11 zoom filters available
on "Photo-Lux" - Triangle, Hermite, Bell, BSpline, Lanczos3, Mitchell,
Nearest, Linear, Fastlinear, Bilinear and Bicubic - this allows you to experiment
with various filters to choose the best quality. Lanczos3 filter can produce the
best quality in many cases but it working a bit slowly. Fastlinear filter working
a bit faster, but usually provides not too excellent results. |
