Abstract: A calibration method for splicing displays including initializing a plurality of displays, obtaining the gamuts of the displays, setting a display with the smallest gamut among the displays as the reference display, adjusting the color temperature, brightness and six-axis hue and saturation of the reference display respectively to a reference color temperature, a reference brightness and reference RGB coordinates, and adjusting the displays according to the reference color temperature, the reference brightness and the reference RGB coordinates.

Abstract: An image calibration method for use in an imaging system. The imaging system includes a projection device, a color detector and a processor. The image calibration method includes in an ambient light environment, the color detector taking a background luminance and an ambient measurement of a test image on a projection surface, and the processor generating a color appearance representation using the background luminance and the ambient measurement, in a darkroom environment, the color detector taking a darkroom measurement of a test image, and if a surround ratio is less than a predetermined threshold, the processor generating a target using the darkroom measurement and the color appearance representation, and the processor configuring a gamut of the projection device according to the target, and adjusting an image according to the gamut and the darkroom measurement, and the projection device projecting the adjusted image.

Abstract: A calibration method for splicing displays including initializing a plurality of displays, obtaining the gamuts of the displays, setting a display with the smallest gamut among the displays as the reference display, adjusting the color temperature, brightness and six-axis hue and saturation of the reference display respectively to a reference color temperature, a reference brightness and reference RGB coordinates, and adjusting the displays according to the reference color temperature, the reference brightness and the reference RGB coordinates.

Abstract: A method for adjusting uniformity of image color tones includes setting brightness of a darkest display region as target brightness and setting color temperature coordinates of a designated display region as target color temperature coordinates of at least one part of display regions of a display, comparing the brightness and the color temperature coordinates of each display region of the at least one part of display regions with the target brightness and the target color temperature coordinates for generating a first calibrated color tone, generating a second calibrated color tone of the each display region of the at least one part of display regions according to an Alpha channel parameter and the first calibrated color tone, generating a uniformity compensated image layer according to all second calibrated color tones, and virtually overlaying the uniformity compensated image layer on the at least one part of display regions.

Abstract: A method for adjusting uniformity of image color tones includes setting brightness of a darkest display region as target brightness and setting color temperature coordinates of a designated display region as target color temperature coordinates of at least one part of display regions of a display, comparing the brightness and the color temperature coordinates of each display region of the at least one part of display regions with the target brightness and the target color temperature coordinates for generating a first calibrated color tone, generating a second calibrated color tone of the each display region of the at least one part of display regions according to an Alpha channel parameter and the first calibrated color tone, generating a uniformity compensated image layer according to all second calibrated color tones, and virtually overlaying the uniformity compensated image layer on the at least one part of display regions.