An image processing system includes a vote adding portion, a vote reception portion, a vote determination portion, and a default registration portion. The vote adding portion adds a vote key indicating whether image data is good or bad, to the image data. The vote reception portion displays, of the vote key, a goodness key indicating that the image data is good, in a selectable manner, and receives selection of the goodness key. The vote determination portion counts the number of votes to the goodness key and determines whether or not the counted number of votes to the goodness key is equal to or greater than a predetermined threshold value. When the number of votes is equal to or greater than the threshold value, the default registration portion automatically registers a setting condition for the image reading of the transmitted image data as an initial setting condition.