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Geospatial Development By Example with Python by Pablo Carreira

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Block iteration

The TIFF format is a versatile image format that can be customized for very diverse needs. The file is composed of a Header, at least one Image File Directory, and any amount of Image Data. Explaining it in a simple way, the header tells where the first directory is on the file. The directory contains information about the image, tells how to read the data related to it, and tells where the next directory is. Each combination of a directory and image data is an image, so a single TIFF file may have multiple images inside it.

Block iteration

Each image data (a whole image) contains blocks of data (that is, parts of the image) that can be read separately, ...

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