blendimg!
blendimg!(img1::GMTimage, img2::GMTimage; new=false, transparency=0.5)
keywords: GMT, Julia, images blend
Blend the RGB color
GMTimage with the shade
intensity image (normally obtained with gdaldem). The new
argument determines if we return a new RGB image or update the color
argument.
Or, blend two 2D UInt8 or 2 RGB images using transparency.
The blending method is the one explained in https://gis.stackexchange.com/questions/255537/merging-hillshade-dem-data-into-color-relief-single-geotiff-with-qgis-and-gdal/255574#255574
img1
,img2
: A RGB (GMTimage{UInt8, 3}) or an indexed images (GMTimage{UInt8, 2}). Ifimg1
is RGB andimg2
is not, than transparency is ignored. However, ifimg1
andimg2
are of the same type (both RGB or both indexed), that thetransparency
determines the relative weight of each of them.transparency
The default value, 0.5, gives equal weight to both images. 0.75 will makeimg2
weight 3/4 of the total sum, and so forth.new
If true returns a new GMTimage object, otherwise it changes theimg1
content.
Returns nothing
if new
option has not been used or a GMTimage, either RGB or indexed depending on the options used.
These docs were autogenerated using GMT: v1.20.0