Please cancel this. I found the problem. Nothing to do with GDAL.
Thanks
On Friday, August 28, 2020, 03:57:55 a.m. GMT+8, Paul Higgins
<[email protected]> wrote:
I have a process to create a KAP/BSB file as follows:- 1. Create a GIF- 2.
From the GIF Create a TIF- 3. From the TIF create a KAP- 4. Read the KAP into a
Navigation program.
For the 2nd process I use a image processing routine called CXIMAGE which works
well except if the GIF is very large then it fails trying to load it. So I
decided to use "gdal_Translate input.gif ouput.tif". This seems to work except
the resulting KAP is unreadable by the navigation program. So there must be a
difference in the TIF created by the CXIMAGE and gdal_translate.
Here is gdalinfo of the input GIF:C:\SAT2CHART\SAT2CHART.Testing\temp>gdalinfo
_temp_SP_KAP_1598583387_.gifDriver: GTiff/GeoTIFFFiles:
_temp_SP_KAP_1598583387_.gifSize is 2303, 2047Coordinate System
is:LOCAL_CS["WGS 84 / Pseudo-Mercator", UNIT["metre",1,
AUTHORITY["EPSG","9001"]]]GeoTransform = 1.262783522530797e+93,
3.8435366748478e-57, 8.467125104458958e+175 3.983892464727202e+252,
3.247326554715089e+35, 5.751476576395799e-153Metadata: AREA_OR_POINT=AreaImage
Structure Metadata: INTERLEAVE=BANDCorner Coordinates:Upper Left
(1262783522530796746737479706828132315251220510125960098188045561858895670625330307346101960704.000,3983892464727202554888960554269713030196205758904239846941521902545445025437834361819163746941457672362766848308926612078115418501685410889087779378869932632608114241119219770776413111973463633846695245205724734052201855595075165452848877534656742817792.000)Lower
Left
(173322050888274871313974395830280214368407169322874580391539706268399546036028454145435710880656476220319189266728520997656174731970960279022450462303754875301100115619306276913152.000,3983892464727202554888960554269713030196205758904239846941521902545445025437834361819163746941457672362766848308926612078115418501685410889087779378869932632608114241119219770776413111973463633846695245205724734052201855595075165452848877534656742817792.000)Upper
Right
(1262783522530796746737479706828132315251220510125960098188045561858895670625330307346101960704.000,3983892464727202554888960554269713030196205758904239846941521902545445025437834361819163746941457672362766848308926612078115418501685410889087779378869932632608114241119219770776413111973463633846695245205724734052201855595075165452848877534656742817792.000)Lower
Right
(173322050888274871313974395830280214368407169322874580391539706268399546036028454145435710880656476220319189266728520997656174731970960279022450462303754875301100115619306276913152.000,3983892464727202554888960554269713030196205758904239846941521902545445025437834361819163746941457672362766848308926612078115418501685410889087779378869932632608114241119219770776413111973463633846695245205724734052201855595075165452848877534656742817792.000)Center
(86661025444137435656987197915140107184203584661437290195769853134199773018014227072717855440328238110159594633364260498828087365985480139511225231151877437650550057809653138456576.000,3983892464727202554888960554269713030196205758904239846941521902545445025437834361819163746941457672362766848308926612078115418501685410889087779378869932632608114241119219770776413111973463633846695245205724734052201855595075165452848877534656742817792.000)Band
1 Block=2303x3 Type=Byte, ColorInterp=Palette Color Table (RGB with 256
entries) 0: 100,96,52,255 1: 136,152,136,255 2: 60,120,96,255 3:
80,60,56,255
I did a gdalinfo of the tif created by the CXIMAGE
program:C:\SAT2CHART\SAT2CHART.Testing\temp>gdalinfo "USING
CXIMAGE_SP_KAP_1598534936_.tif"Driver: GTiff/GeoTIFFFiles: USING
CXIMAGE_SP_KAP_1598534936_.tifSize is 2303, 2047Coordinate System is
`'Metadata: TIFFTAG_RESOLUTIONUNIT=2 (pixels/inch) TIFFTAG_XRESOLUTION=96
TIFFTAG_YRESOLUTION=96Image Structure Metadata: INTERLEAVE=BANDCorner
Coordinates:Upper Left ( 0.0, 0.0)Lower Left ( 0.0, 2047.0)Upper
Right ( 2303.0, 0.0)Lower Right ( 2303.0, 2047.0)Center ( 1151.5,
1023.5)Band 1 Block=2303x3 Type=Byte, ColorInterp=Palette Color Table (RGB
with 256 entries) 0: 8,0,8,255 1: 8,8,12,255
and a gdalinfo of the TIF created by
gdal_translate:C:\SAT2CHART\SAT2CHART.Testing\temp>gdalinfo "USING
GDAL_SP_KAP_1598538217_.tif"Driver: GTiff/GeoTIFFFiles: USING
GDAL_SP_KAP_1598538217_.tifSize is 2303, 2047Coordinate System is:LOCAL_CS["WGS
84 / Pseudo-Mercator", UNIT["metre",1,
AUTHORITY["EPSG","9001"]]]GeoTransform = 1.262783522530797e+93,
3.8435366748478e-57, 8.467125104458958e+175 3.983892464727202e+252,
3.247326554715089e+35, 5.751476576395799e-153Metadata: AREA_OR_POINT=AreaImage
Structure Metadata: INTERLEAVE=BANDCorner Coordinates:Upper Left
(1262783522530796746737479706828132315251220510125960098188045561858895670625330307346101960704.000,3983892464727202554888960554269713030196205758904239846941521902545445025437834361819163746941457672362766848308926612078115418501685410889087779378869932632608114241119219770776413111973463633846695245205724734052201855595075165452848877534656742817792.000)Lower
Left
(173322050888274871313974395830280214368407169322874580391539706268399546036028454145435710880656476220319189266728520997656174731970960279022450462303754875301100115619306276913152.000,3983892464727202554888960554269713030196205758904239846941521902545445025437834361819163746941457672362766848308926612078115418501685410889087779378869932632608114241119219770776413111973463633846695245205724734052201855595075165452848877534656742817792.000)Upper
Right
(1262783522530796746737479706828132315251220510125960098188045561858895670625330307346101960704.000,3983892464727202554888960554269713030196205758904239846941521902545445025437834361819163746941457672362766848308926612078115418501685410889087779378869932632608114241119219770776413111973463633846695245205724734052201855595075165452848877534656742817792.000)Lower
Right
(173322050888274871313974395830280214368407169322874580391539706268399546036028454145435710880656476220319189266728520997656174731970960279022450462303754875301100115619306276913152.000,3983892464727202554888960554269713030196205758904239846941521902545445025437834361819163746941457672362766848308926612078115418501685410889087779378869932632608114241119219770776413111973463633846695245205724734052201855595075165452848877534656742817792.000)Center
(86661025444137435656987197915140107184203584661437290195769853134199773018014227072717855440328238110159594633364260498828087365985480139511225231151877437650550057809653138456576.000,3983892464727202554888960554269713030196205758904239846941521902545445025437834361819163746941457672362766848308926612078115418501685410889087779378869932632608114241119219770776413111973463633846695245205724734052201855595075165452848877534656742817792.000)Band
1 Block=2303x3 Type=Byte, ColorInterp=Palette Color Table (RGB with 256
entries) 0: 100,96,52,255 1: 136,152,136,255 2: 60,120,96,255 3:
80,60,56,255 4: 212,180,204,255
have tried the following options to gdal_translate with no success:-- options
= '-co PROFILE=BASELINE'-- options = '-b 1 -b 2 -b 3'-- options = '-co
PHOTOMETRIC=CMYK' -- options = '-co PHOTOMETRIC=MINISBLACK' -- options =
'-co PHOTOMETRIC=YCBCR' CIELAB -- options = '-co PHOTOMETRIC=CIELAB'
Any help would be appreciate,
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