摘要 |
A method of detecting one or more errors in a series of electronically processed, multi-pixel images, the pixels of which correspond from one image to the next, the method including monitoring the reflectance of one or more of the corresponding pixels during sequential processing of each image of the series and, if the reflectance value of a pixel is invariant or substantially invariant in more than a predetermined number of consecutive said images, and identifying an error. |