Method for displaying background wallpaper and one or more user interface elements on display unit of electrical apparatus at the same time, computer program product for the method and electrical apparatus implementing the method

A non-transitory computer storage medium storing a computer program product, wherein the computer program product comprises a computer program for an electrical apparatus to execute a method for displaying one or more user interface elements upon a background wallpaper on a display unit of the electrical apparatus when the computer program is loaded into the electrical apparatus, the method comprises:

• analyzing image characteristic values of the background wallpaper, the image characteristic values including colors, textures, and lines on the background wallpaper;
• dividing the background wallpaper into a plurality of pieces according to complexity of the image characteristic values of the background wallpaper, wherein the more complex the image characteristic values of a part of the background wallpaper is, the greater the number of the pieces that the part of the background wallpaper is divided;
• executing smooth filtering on the background wallpaper according to the sizes of the divided pieces of the background wallpaper;
• merging the smooth filtered pieces to designate a subject of interest on the background wallpaper;
• and
• displaying the one or more user interface elements upon the background wallpaper without covering a Region of Interest (ROI), wherein the ROI comprises the subject of interest on the background wallpaper.

An electrical apparatus comprising:

• a display unit;
• a display control unit electrically connected to the display unit, wherein the display control unit is configured to control the display unit;
• and
• a processing unit electrically connected to the display control unit, wherein the processing unit analyzes image characteristic values of a background wallpaper, the image characteristic values including colors, textures, and lines on the background wallpaper,
• the processing unit divides the background wallpaper into a plurality of pieces according to complexity of the image characteristic values of the background wallpaper, wherein the more complex the image characteristic values of a part of the background wallpaper is, the greater the number of the pieces that the part of the background wallpaper is divided;
• wherein the processing unit executes smooth filtering on the background wallpaper according to sizes of the divided pieces of the background wallpaper;
• wherein the processing unit merges the smooth filtered pieces to designate a subject of interest on the background wallpaper, and
• the display control unit controls the display unit to display the one or more user interface elements upon the background wallpaper without covering a Region of Interest (ROI), wherein the ROI comprises the subject of interest on the background wallpaper.