Image data processing method and device

A computing device comprising memory and a processor, the memory storing a plurality of computer-readable instructions that, when executed by the processor, cause the computing device to perform the following steps:

• obtaining target image data;
• creating grid information on a target display region corresponding to the target image data, the grid information comprising a plurality of subgrids, and each subgrid being corresponding to a different grid number;
• obtaining a sliding operation track corresponding to a touch screen;
• extracting a touch point that is in the sliding operation track and that is located on the target display region, as a target touch point;
• creating position coordinates of the target touch point according to the grid information;
• calculating, according to the grid information and the position coordinates of the target touch point, a cleaning number corresponding to the target touch point;
• adding a grid number same as the cleaning number to a preset number set, further including:
• detecting whether the grid number exists in the preset number set;
• adding the grid number to the preset number set if the grid number not exist in the preset number set;
• and
• skipping adding the grid number to the preset number set if the grid number exists in the preset number set;
• deleting subimage data covered by the target touch point;
• and
• completely deleting, when the quantity of grid numbers in the number set meets a preset cleaning condition, the target image data from which a plurality of pieces of subimage data has been deleted.

A non-volatile computer readable storage medium, storing a plurality of computer-readable instructions that, when executed by one or more processors of a computing device, cause the computing device to perform the following steps:

• obtaining target image data;
• creating grid information on a target display region corresponding to the target image data, the grid information comprising a plurality of subgrids, and each subgrid being corresponding to a different grid number;
• obtaining a sliding operation track corresponding to a touch screen;
• extracting a touch point that is in the sliding operation track and that is located on the target display region, as a target touch point;
• creating position coordinates of the target touch point according to the grid information;
• calculating, according to the grid information and the position coordinates of the target touch point, a cleaning number corresponding to the target touch point;
• adding a grid number same as the cleaning number to a preset number set, further including:
• detecting whether the grid number exists in the preset number set;
• adding the grid number to the preset number set if the grid number not exist in the preset number set;
• and
• skipping adding the grid number to the preset number set if the grid number exists in the preset number set;
• deleting subimage data covered by the target touch point;
• and
• completely deleting, when the quantity of grid numbers in the number set meets a preset cleaning condition, the target image data from which a plurality of pieces of subimage data has been deleted.