[Magick-bugs] identify and -ping
Ilya Zakharevich
nospam-abuse at ilyaz.org
Fri Mar 20 15:58:16 PDT 2009
Version: ImageMagick 6.5.0-0 2009-03-15 Q16 http://www.imagemagick.org
[I see that `identify' now does not try to decode the whole image. Thanks!]
I'm trying to get an intermediate level of verbosity: those fields of
`identify -verbose' output which do not require decoding of the
image's pixmap. I discovered -ping in
http://www.imagemagick.org/Usage/basics/#controls.
However, it looks like `identify -ping' is synonymous with
`identify'. And `identify -verbose -ping' produces junk. Below is
beginnings of 2 outputs: `identify -verbose -ping' vs `identify
-verbose'; note differneces in resolution, type, depth, channel
stats... And `-verbose -ping', while quickier than `-verbose', still
take orders of magnitude more time than no-options `identify'...
So my question is: can -ping be made much quickier (so it does not
read pixmap), and omit as many fields of `-verbose' output as
possible?
Thanks,
Ilya
======================================================= -ping
Image: crop-small.png
Format: PNG (Portable Network Graphics)
Class: DirectClass
Geometry: 39x45+0+0
Resolution: 141.73x141.73
Print size: 0.275171x0.317505
Units: PixelsPerCentimeter
Type: Bilevel
Base type: Bilevel
Endianess: Undefined
Colorspace: RGB
Depth: 8/1-bit
Channel depth:
gray: 16-bit
Channel statistics:
gray:
min: 0 (0)
max: 223 (0.87451)
mean: 19.7274 (0.0773625)
standard deviation: 56.5211 (0.221651)
kurtosis: 5.61659
skewness: 2.70659
=======================================================
Image: crop-small.png
Format: PNG (Portable Network Graphics)
Class: DirectClass
Geometry: 39x45+0+0
Resolution: 360x360
Print size: 0.108333x0.125
Units: PixelsPerInch
Type: TrueColor
Endianess: Undefined
Colorspace: RGB
Depth: 8-bit
Channel depth:
red: 8-bit
green: 8-bit
blue: 8-bit
Channel statistics:
red:
min: 12 (0.0470588)
max: 211 (0.827451)
mean: 119.164 (0.467308)
standard deviation: 53.8627 (0.211226)
kurtosis: -1.10844
skewness: 0.442564
=======================================================
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