Patent ID: 9384562
Filing Date: 2016-07-05
CPC Classification: G06T,H04N

Claim Text:
1. A computer implemented method for creating visual content to be output in a layered manner, the method comprising: a) receiving at least two image content items, b) categorizing the received image content items on a basis of a type of the image content items to at least two categories wherein the categorization is configured to take into account at least vector graphics and raster graphics as different types of the image content items, c) rendering the image content items in each of the at least two categories into corresponding number of raster canvases, each raster canvas representing image content data in one category, wherein at least two raster canvases are overlapping and wherein the overlapping area in each overlapping raster canvases is set transparent except on areas wherein the raster canvas in question comprises image content data, d) compressing the image content data in each of the raster canvases, wherein the compression method for each of the raster canvases is selected on a basis of the image content data in the raster canvas to be compressed so that if a raster canvas comprises transparency information it is compressed with a lossless compression method, e) storing the compressed image content data of each of the raster canvases.