Latest revision as of 15:17, 24 August 2022

We can compress png images (especially the once created by using colored scanner) using 'pngcrush', 'optipng' or 'advancecomp' tools.

pngcrush

pngcrush can be used as follows:

mkdir output
pngcrush -d output -brute -l 9 -v file1.png file2.png ... filen.png

optipng can be used as follows:

mkdir output
cp file1.png file2.png ... filen.png output
cd output
optipng -o7 *

advancecomp can be used in following manner:

advpng -z4 file1.png

advancecomp also seems to give best compression and response time in comparison to others.

@@ Line 1: / Line 1: @@
-<yambe:breadcrumb self="Pngcrush or optipng or advancecomp">Image processing tools|Image processing tools</yambe:breadcrumb>
+[[Main Page|Home]] > [[CentOS]] > [[CentOS 6.x]] > [[Image processing tools]] > [[Pngcrush or optipng or advancecomp]]
 We can compress png images (especially the once created by using colored scanner) using '<tt>pngcrush</tt>', '<tt>optipng</tt>' or '<tt>advancecomp</tt>' tools.
@@ Line 34: / Line 35: @@
-<yambe:breadcrumb self="Pngcrush or optipng or advancecomp">Image processing tools|Image processing tools</yambe:breadcrumb>
+[[Main Page|Home]] > [[CentOS]] > [[CentOS 6.x]] > [[Image processing tools]] > [[Pngcrush or optipng or advancecomp]]