White and grey grids in GrayscaleAlpha Type Images are converted to Black after processing in ImageMagick
Posted: 2019-02-07T22:48:17-07:00
Hi Team,
While processing the image having alternate white and grey grids around the image in the background, the image background is converted into the black color.
Is this is the actual system behavior or a bug?
Version: ImageMagick 7.0.8
Please find the image properties below:
While processing the image having alternate white and grey grids around the image in the background, the image background is converted into the black color.
Is this is the actual system behavior or a bug?
Version: ImageMagick 7.0.8
Please find the image properties below:
Code: Select all
Format: PNG (Portable Network Graphics)
Mime type: image/png
Class: DirectClass
Geometry: 1348x2000+0+0
Resolution: 37.8x37.8
Print size: 35.6614x52.9101
Units: PixelsPerCentimeter
Colorspace: sRGB
Type: GrayscaleAlpha
Base type: Undefined
Endianess: Undefined
Depth: 8-bit
Channel depth:
Red: 8-bit
Green: 8-bit
Blue: 8-bit
Alpha: 8-bit
Channel statistics:
Pixels: 2696000
Red:
min: 0 (0)
max: 255 (1)
mean: 227.66 (0.892785)
standard deviation: 48.6503 (0.190785)
kurtosis: 7.54364
skewness: -2.5977
entropy: 0.444528
Green:
min: 0 (0)
max: 255 (1)
mean: 227.66 (0.892785)
standard deviation: 48.6503 (0.190785)
kurtosis: 7.54364
skewness: -2.5977
entropy: 0.444528
Blue:
min: 0 (0)
max: 255 (1)
mean: 227.66 (0.892785)
standard deviation: 48.6503 (0.190785)
kurtosis: 7.54364
skewness: -2.5977
entropy: 0.444528
Alpha:
min: 0 (0)
max: 255 (1)
mean: 84.7068 (0.332183)
standard deviation: 119.911 (0.470239)
kurtosis: -1.4896
skewness: 0.712598
entropy: 0.127122