Patent ID: 8780139

Claim:
A method, comprising: performing, by a computer: presenting a graphical user interface that enables manipulating an image via a visual manipulation tool, an area of the visual manipulation tool being changeable by a user such that a change to the area of the visual manipulation tool changes a resolution of the visual manipulation tool, the image including multiple layers each having a different resolution one to another; determining a minimum resolution for the visual manipulation tool based, at least in part, on one or more of the multiple layers; monitoring the resolution of the visual manipulation tool responsive to a change in the area of the visual manipulation tool, the monitoring including monitoring a resolution of at least one of the multiple layers; comparing the monitored resolution of the visual manipulation tool to the determined minimum resolution; in response to the resolution of the visual manipulation tool being less than the determined minimum resolution, interrupting operation of the visual manipulation tool; and in response to the resolution of the visual manipulation tool being equal or greater than the determined minimum resolution, enabling further operation of the visual manipulation tool.