Learn the steps to mosaic images. Manual mosaicking is more complex and involves four processes completed in order: selection of an image, collecting of the cutline, adjusting the colour balance and adding the image to the mosaic file (PCI Geomatics, 2014). Automatic mosaic generates a mosaic using an algorithm and a few parameter selections are required. A list of data sources, PDFs and links to York University Library are available on the resources page.