Timeline for Convert a tiff Float32 image to 8bit tif (or jpeg) image using GDAL and Python
Current License: CC BY-SA 3.0
11 events
when toggle format | what | by | license | comment | |
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Jun 8, 2015 at 12:29 | vote | accept | Bárbara Duarte | ||
Apr 23, 2015 at 18:32 | answer | added | radouxju | timeline score: 4 | |
Apr 23, 2015 at 16:02 | comment | added | Aaron♦ | @BárbaraDuarte Please consider adding your findings as an answer so we can consider this question resolved. | |
Apr 23, 2015 at 15:53 | answer | added | xunilk | timeline score: 6 | |
Apr 23, 2015 at 15:04 | comment | added | Bárbara Duarte | No, I am just trying with any image. But I get it now. I use gdal_translate with -scale and the image is now with 8 bit and with the colors. Thank you. I will find a way to get it in python script. | |
Apr 23, 2015 at 14:52 | comment | added | user30184 | Much easier than to explain is to show an example with real data. Do you have some test data to be used as input? | |
Apr 23, 2015 at 14:44 | comment | added | Bárbara Duarte | I try what you said and the black image as the same information about the original image. But it appears in black. How do I correct that? | |
Apr 22, 2015 at 16:03 | comment | added | user30184 |
For sure it is possible but I am not the one who knows how. I would first study the histogram of the original and the all black image you have with gdalinfo -stats . 32 bit images often have data only on the lower end of the scale which make them look like totally black if they are viewed without stretching the histogram. Then you may need to find an equivalent to -scale option of gdal_translate gdal.org/gdal_translate.html for Python.
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Apr 22, 2015 at 15:57 | comment | added | Bárbara Duarte | I need to solve it inside an application (a script) so I prefer with Python. It is possible? | |
Apr 22, 2015 at 15:56 | comment | added | user30184 | Do you definitely want to do it with Python and not with a gdal_translate command? | |
Apr 22, 2015 at 15:49 | history | asked | Bárbara Duarte | CC BY-SA 3.0 |