p { margin-bottom: 0.21cm; } Hi all I have a numeric matrix data I scale it linearly to be able to reduce it to unsigned 8bits. I create a raster object from scaled data and setting data type to "INT1U".I want to export this data to png indexed image using my own color table. The pixel value of exported png images must remain unchanged because from applying a transformation geophysical can be derived. writeRaster of raster package do not lets write raster object in png format, it allow for write scaled data in other formats (it keeps pixel value although i am not able to add my color table). Do you known how could this indexed png images generated this with R?. Thank's in advance Josep [[alternative HTML version deleted]]