Image processing apparatus, image processing system, and image processing method

An image processing method, comprising:

• acquiring a current pen event based on an operation on a screen;
• determining whether the current pen event is a stroke of a dot image or a stroke of a click operation;
• and
• starting a timer, in response to releasing the pen from the screen during the current pen event, and when a distance of the movement, during the current pen event, of the pen on the screen before being released is below a click distance threshold,
• wherein:
• the determining further comprises determining that the current pen event is a stroke of a dot image when an elapsed time from a prior pen event of releasing the pen from the screen until an expiration of the timer is within a certain period of time, and
• the determining further comprises determining that the current pen event is a click operation when the elapsed time from an end of the prior pen event of releasing the pen from the screen until the expiration of the timer is greater than the certain period of time.

An image processing apparatus, comprising:

• event acquisition circuitry configured to acquire a current pen event based on an operation on a screen of the image processing apparatus;
• means for determining whether the current pen event is a stroke of a dot image or a click operation;
• and
• a timer configured to start timing, in response to releasing the pen from the screen during the current pen event, and when a distance of the movement, during the current pen event, of the pen on the screen before being released is below a click distance threshold,
• wherein:
• the means for determining is for further determining that the current pen event is the stroke of a dot image when an elapsed time from a prior pen event of releasing the pen from the screen until an expiration of the timer is within a certain period of time, and
• the means for determining is for further determining that the current pen event is a click operation when the elapsed time from the prior pen event of releasing the pen from the screen until the expiration of the timer is greater than the certain period of time.