how to manually specify the jp2 type?
Posted: 2011-05-31T21:33:56-07:00
Hi,
I have a lot of jpg images which I used "convert" to convert them to jp2 images, but one of them, which is all text, was converted automatically as grayscale, and resulted in a very blur image. The rest are fine. I run them in a batch job, so I have to use the identical parameters for all the images.
Is there a option with which I can specify the "Type"? I looked around and couldn't find any.
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"identify" of the incorrect jp2 showed
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The rest showed
I have a lot of jpg images which I used "convert" to convert them to jp2 images, but one of them, which is all text, was converted automatically as grayscale, and resulted in a very blur image. The rest are fine. I run them in a batch job, so I have to use the identical parameters for all the images.
Is there a option with which I can specify the "Type"? I looked around and couldn't find any.
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"identify" of the incorrect jp2 showed
Code: Select all
Type: Grayscale
Base type: Grayscale
Endianess: Undefined
Colorspace: RGB
Depth: 8-bit
Channel depth:
gray: 8-bit
Channel statistics:
gray:
min: 0 (0)
max: 255 (1)
mean: 237.756 (0.932375)
standard deviation: 40.227 (0.157753)The rest showed
Code: Select all
Format: JP2 (JPEG-2000 File Format Syntax)
Class: DirectClass
Geometry: 823x1200+0+0
Resolution: 72x72
Print size: 11.4306x16.6667
Units: Undefined
Type: TrueColor
Endianess: Undefined
Colorspace: RGB
Depth: 8-bit
Channel depth:
red: 8-bit
green: 8-bit
blue: 8-bit
Channel statistics:
red:
min: 0 (0)
max: 255 (1)
mean: 236.341 (0.926826)
standard deviation: 46.7814 (0.183457)
green:
min: 0 (0)
max: 255 (1)
mean: 236.299 (0.926664)
standard deviation: 46.8456 (0.183708)
blue:
min: 0 (0)
max: 255 (1)
mean: 236.263 (0.926521)
standard deviation: 46.8824 (0.183852)