Image processing device, display terminal, image display system, image processing method, control method of display terminal, control method of image display system, and program thereof

An image processing method, comprising:

• capturing, by an image unit, a picture image from an imaging angle;
• detecting a change in the imaging angle;
• and
• displaying a display image generated based on the captured picture image, and displaying a predetermined image different from the captured picture image when the change in the imaging angle is detected, wherein
• when the change in the imaging angle is detected, the image unit outputs the predetermined image for a predetermined time, and the display displays the predetermined image for the predetermined time, and
• the method further comprises measuring a switching time required for displaying a picture image captured after the imaging angle is changed, wherein the measured image unit uses the measured switching time as the predetermined time.

A non-transitory computer-readable storage medium storing a program for causing a computer to perform a process of displaying a captured picture image, the process comprising:

• capturing, by an image unit, the picture image from an imaging angle;
• detecting a change in the imaging angle;
• and
• displaying a display image generated based on the captured picture image, and displaying a predetermined image different from the captured picture image when the change in the imaging angle is detected, wherein
• when the change in the imaging angle is detected, the image unit outputs the predetermined image for a predetermined time, and the display displays the predetermined image for the predetermined time, and
• the process further comprises measuring a switching time required for displaying a picture image captured after the imaging angle is changed, wherein the image unit uses the measured switching time as the predetermined time.