A method for determining image sections of a master image usable as a control point, which is used as a template for the testing of objects, a) wherein original image sections are predefined in the master image, b) wherein predefined displacement vectors are assigned to the original image sections, with which said image sections are displaced over the master image into a number of positions corresponding in each case to a number of displacement vectors, c) wherein for each original image section in each of the positions with a predefined correlation measure or error measure the correlation measure value or the error measure value is determined between the original image section and the image section of the master image located in this position, advantageously selected equal in size, and d) wherein for each original image section the maximum correlation measure value C max or the minimum error value C min is calculated with respect to the image area of the master image, over which the original image area was displaced, characterized in e) that a qualification measure value is defined by linkage - of the minimum error value C min or a value 1 - C max or 1 - C 2 max derived from the maximum correlation measure value C max with an intensity value determined based on the intensity values of the image points of the respective original image section of the master image and indicating the image intensity and f) that the original image section is regarded as a control point of the master image suitable for the testing of objects, if the qualification measure value exceeds a predefined minimum value. a) wherein original image sections are predefined in the master image, b) wherein predefined displacement vectors are assigned to the original image sections, with which said image sections are displaced over the master image into a number of positions corresponding in each case to a number of displacement vectors, c) wherein for each original image section in each of the positions with a predefined correlation measure or error measure the correlation measure value or the error measure value is determined between the original image section and the image section of the master image located in this position, advantageously selected equal in size, and d) wherein for each original image section the maximum correlation measure value C max or the minimum error value C min is calculated with respect to the image area of the master image, over which the original image area was displaced, characterized in e) that a qualification measure value is defined by linkage - of the minimum error value C min or a value 1 - C max or 1 - C 2 max derived from the maximum correlation measure value C max with an intensity value determined based on the intensity values of the image points of the respective original image section of the master image and indicating the image intensity and - of the minimum error value C min or a value 1 - C max or 1 - C 2 max derived from the maximum correlation measure value C max with an intensity value determined based on the intensity values of the image points of the respective original image section of the master image and indicating the image intensity and f) that the original image section is regarded as a control point of the master image suitable for the testing of objects, if the qualification measure value exceeds a predefined minimum value.