Calibrating device and method for adjust luminance-chrominance of pixels of LED panels

A calibrating device, comprising:

• a memory configured to store at least one computer readable instruction;
• and
• a processor electrically coupled to the memory, and configured to access and execute the at least one computer readable instruction to:
• analyze an image of a target region which a seam between two LED panels disposed side by side is in, to obtain characteristic data associated with the seam;
• compare the characteristic data associated with the seam with a predetermined value to generate a comparison result;
• and
• adjust grayscale data of pixels of a first LED panel of the two LED panels based on the comparison result, for adjusting luminance-chromaticity of the pixels, wherein the pixels which grayscale data are adjusted comprises at least one pixel line of the first LED panel adjacent to the seam, wherein the at least one pixel line is in a first direction or a second direction, and the first direction is perpendicular to the second direction.