![]() ![]() Also, we have presented how to choose the bands which you would like to end up in the output map when your input data contains more of them. In this article, we have shown you how to set custom data scale values. MapTiler Engine is capable of processing more complex input data than just classic RGB(A) images. and leave the Ignore alpha channel setting. To generate a monochrome image visualizing just this band, set Red, Green, and Blue bands to band 4. The example image used in this article, apart from the RGB channels, has a 4th band that contains the data from the NIR (Near Infra-Red) spectral band. This setting is changed in the Bands → Change bands… dialog: MapTiler Engine allows mapping these bands to corresponding bands of the output RGB(A) model. They might be additional spectral bands like Infra-Red, information for cloud detection, or plants vegetation data, each stored as a separate band in the input image. Some data sources, such as Sentinel 2 aerial imagery, contain more information than the classic RGB(A) model. To do so, after opening a file in MapTiler Engine, you need to go to the Bands menu on the right-hand side of the window and select the Change bands… option. MapTiler Engine allows setting the min and max values for each of the bands of the input image. This particular image is a piece of aerial imagery dataset that has all band data scaled to the 0 - 4000 range (instead of 0 - 65535 provided by the 16 bits). In such cases you might see something like this: However, your input image might contain band data values in 16, 32, or 64-bit format that do not cover the whole range of the format. Setting custom data scale values is available only for non-8-bit images and requires at least MapTiler Engine Plus.īy default, MapTiler Engine reads the band data values and maps them to the full range provided by its format. This article will show you how to set custom data scale values and choose the output bands order. However, if your dataset contains more bands that encode additional information, MapTiler Engine provides you with the ability to map the bands from the input image to corresponding bands in the output RGB(A) model. Output generated by MapTiler Engine contains tiles in RGB(A) color model. You might need to tweak the data scale values for output color bands to achieve desired visual results. MapTiler Engine is capable of reading images in non-8-bit formats but sometimes default settings are not right. ![]()
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