is not a u201c black u201d pixel s 63 no the cpu 26 increments the row number n by one s 64 and if the row number n has not reached the maximum value max s 65 no s 63 to s 65 are repeated when the row number n reaches the maximum value max s 65 yes the cpu 26 increments the line number m by one s 66 and if the line number m has not reached the maximum value max s 67 no s 62 onwards are repeated next in case the pixel located in the search position g m n is u201c black u201d s 63 yes the cpu 26 stores the black pixel corresponding to the current search position g m n as the leading black pixel p 0 s 68 the control is then terminated and the control flow returns to s 53 of the outline pixel search control the cpu 26 stores the black pixel at coordinate 1 11 of the embroidery image illustrated in fig1 as the leading black pixel p 0 then in case the cpu 26 detects the leading black pixel in the outline pixel extraction control s 53 yes the outline pixel search control shown in fig9 for searching the outline pixel is executed s 54 in case the cpu 26 fails to detect the leading black pixel s 53 no a message reading u201c cannot execute temporary stitching u201d is displayed on the lcd 6 s 55 as a first step after starting the outline pixel search control the.