An image transmitting method is used to transmit image data from an image transmitting apparatus to an image receiving apparatus. The image transmitting device receives operation events generated in the image receiving device through a network. The image transmitting apparatus calculates a determination time of the image data, in a transmission control based on a previously determined transmission interval, based on an amount of the image data to be transmitted to the image receiving apparatus, information regarding the network through which the image data is transmitted, and a number of the operation events that have been received from an immediately previous transmission time until a time of transmitting the image data. The image transmitting apparatus compares the determination time with a transmission time indicating a time of transmitting the image data, and prevents a transmission of the image data when the determination time is later than the transmission time.