| 摘要 |
PURPOSE:To allow painting out without increasing memory capacity by housing only a relative location between advancing pixels as data permitting the tracing back of a reverse sequence when painting out is deadlocked, while painting out the pixels. CONSTITUTION:A host computer 1 defines the close area within an image memory 4, and designates an arbitrary point within the close area in a painting out circuit 2. The painting out circuit 2 starts from this designated point, selects the pixels required to be painted out adjacent to the circuit 2 according to the required search direction sequence, and causes a relative location storage memory 3 to store this selected move direction to the pixels. In case of selecting the following pixels required to be painted out, and in case where all the adjacent pixels can not be selected, the pixels required to be painted out are searched while tracing the move direction data stored in the relative location storage memory 3 in a stored order. |
