How to create transparent TIF images using GDAL?
These tif files have white background and black contours. What I want to achieve is to make this white background completely transparent. I tried a lot of gdalwarp commands, but to no avail: gdalwarp -srcnodata 255 -dstalpha # completely transparent. See no image gdalwarp -srcnodata 0 -dstalpha # completely transparent.
How to change the description of a GeoTIFF file?
GDAL includes a python application called gdal_edit.py which can be used to modify the metadata of a file in place. I am not familiar with the Description field you are referring to, but this tool should be the one to use. Here is the man page: gdal_edit.py
How to set the ” band description ” option / tag?
To specify what I mean, this is an example of gdalinfo return from a GeoTIFF file with set “Description”:
How to add transparency to a tif file?
Use gdaldem to add color to your tif file. style.txt looks like this, each line having up to five values. First one is the raster’s pixel value, next three are RGB values, and the fifth one is alpha, which is used for transparency – 255 means (by default) no transparency, 0 denotes fully transparent.
What are the different colors of a TIFF file?
There are four main color modes for a Tiff file. BW, Grayscale, RGB and CMYK. If the Tiff file you have or are creating is Black and White (or is going to be a Spot Color,) then the process is simple.
How to make a TIFF file in Photoshop?
There are four main color modes for a Tiff file. BW, Grayscale, RGB and CMYK. If the Tiff file you have or are creating is Black and White (or is going to be a Spot Color,) then the process is simple. In Photoshop, create or open the file, convert it to Bitmap Mode (under Image>Mode) and save it as a Tiff.
Which is the best tool for parallel raster processing?
Dan’s GDAL scripts – a collection of GDAL-compatible utilities & alternative implementations of gdal tools. Let’s Get Parallel – Tools and opportunities for end-user parallel raster & geometry processing – presentation from FOSS4G Europe 2015. GDAL raster data tips and tricks
Which is the best end user framework for GDAL?
NOTE: all GDAL/OGR user docs also available as one PDF and as a single HTML-page from GIS-Lab (russian GIS community). This is an end-user framework built around GDAL for huge rasters. It organises national/continental-scale tiled parallel GDAL operations efficiently.