I hope this may help someone in the future. The format is designated by the magick argument, the format-specific key is designated by key, and the associated value is specified by value. The meanings of the definitions are format specific. Grayscale images may have bit depths of 8, or 16, or higher. Then I load the 16-bit color tif into gimp and convert it to a grayscale image and that seems to work! Smooth and correct elevation. Quotes from there: defineValue: 'Set or obtain a definition string to applied when encoding or decoding the specified format. Well, I've found a work around! In 3ds max I can render out a 16-bit color Tif. ![]() I checked it with ImageJ software with that image and the fact that they are between 0 to 65535. But, output of my program is all pixel values of that image between 0 to 255 at all. I want get pixel value of the images using libpng library. ![]() Also, the elevation scale does not seem to save.Īttached you will find my height maps (png and tif) and landscape files for each. I have a grayscale image with 16 bits depth. How can I get the png's to create the correct elevation? I generated the pngs and tifs from 3ds max using a cage height of 416.25 meters as show in elevation settings below. The 16 bit pngs do not create the expected elevation, the scale seems to make lows higher and the high areas lower. The function determines the type of an image by the content, not by the file extension. Add it with char3 to get the next 12 bit data in short2. Left shift (char2 & 0x0F) by 8 and store to short2. Add it with (char2 & 0xF0) to get the first 12 bit data in short1. The 8-bit depth is causing terracing/stepping in the elevation, so I decided to use 16-bit grayscale pngs. This data can be conveniently converted to 16bit data: Left shift char1 by 4 and store to short1. If I use 8-bit tif height maps, the landscape generates as expected. ![]() I am trying to create a landscape from PNG height maps but the elevation scale is wrong.
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