Method and wireless handheld device for determining image hue

A wireless handheld device for determining image hue, comprising:

• a color obtaining module, configured to obtain color information of a part or all of pixels of an image, wherein the color information comprises hue values, brightness values and saturation values;
• a pixel selecting module, configured to selecting a pixel from the part or all of pixels of the image according to the obtained brightness values and saturation values of the part or all of the pixels;
• a weight value obtaining module, configured to obtain a weight of the selected pixel;
• a weight value accumulation module, configured to:
• compare the obtained hue value of the selected pixel with hue values of preset multiple candidate colors, wherein the hue values of the preset multiple candidate colors are evenly covered on a hue circle and each of the preset multiple candidate colors has an initial weight;
• selecting a first candidate color from the preset multiple candidate colors, wherein the hue value of the first candidate color is closest to the obtained hue value of the selected pixel, and
• obtain an updated weight of the first candidate color by accumulating the weight value of the selected pixel to the initial weight value of the first candidate color;
• and
• a hue determination module, configured to:
• select, from the preset multiple candidate colors, a second candidate color having the highest weight according to the updated weight of the first candidate color and the initial weights of the preset multiple candidate colors except the first candidate color;
• use a hue value of the second candidate color with the highest weight value as the image hue.

A wireless handheld device for determining image hue, comprising a processor and a memory storing instructions, when executing the instructions, the processor is configured to:

• obtain color information of a part or all of pixels of an image, wherein the color information comprises hue values, brightness values and saturation values;
• select a pixel from the part or all of pixels of the image according to the obtained brightness values and saturation values of the part or all of the pixels;
• obtain a weight of the selected pixel;
• compare the obtained hue value of the selected pixel with hue values of preset multiple candidate colors, wherein the hue values of the preset multiple candidate colors are evenly covered on a hue circle and each of the preset multiple candidate colors has an initial weight;
• select a first candidate color from the preset multiple candidate colors, wherein the hue value of the first candidate color is closest to the obtained hue values of the selected pixel;
• obtain an updated weight of the first candidate color by accumulating the-weight of the select pixel to the initial weight of the first candidate color;
• select, from the preset multiple candidate colors, a second candidate color having a highest weight according to the updated weight of the first candidate color and the initial weights of the preset multiple candidate colors except the first candidate color;
• and
• use a hue value of the second candidate color as the image hue.