An 
image signal processing apparatus includes an image 
pickup unit operable to take image information; an 
image signal-
processing unit operable to process the image information; a display unit operable to display the image information on a display; a recording unit operable to 
record the image information onto a recording medium; a reproducing unit operable to reproduce the recorded image information; a 
communication unit operable to communicate with an 
external image display to display the image information on the 
external image display; an obtaining unit operable to obtain an adjustive 
image pattern used to adjust 
image quality so as to correspond to image-displaying performance of the 
external image display; an adjustive 
image display unit which permits the adjustment of the 
image quality by correcting parameters used by the 
image signal-
processing unit to perform image 
signal processing based on the adjustive 
image pattern, the adjustive 
image display unit acting to display the adjustive 
image pattern representing an uncorrected state and a corrected state on the external 
image display; and a correcting unit operable to correct the 
image quality to match displaying characteristics of the external image display by correcting the parameters used by the image 
signal-processing unit to perform the image 
signal processing so as to correspond to the corrected adjustive image pattern displayed by the adjustive image display unit.