Abstract: Conventionally, color films must be used with the light source or illumination for which it was designed, such as for natural daylight, fluorescent-light or tungsten-light or, if used with another light source, a suitable conversion filter must be placed over the camera lens. However, an improvement in the emulsion of the film provide an improved type of film with which good printed images are available through a mere correction during printing of the film. The present invention provides a method and a device for detecting and recording the type of illumination through detection of their spectral properties and detection of existence of a flickering noise due to an alternating voltage of the commercial power supply, and a system for an automatic film development.

Abstract: An automatic surface defect-detecting method and apparatus for detecting only effective significant surface defects. The significant defects can be detected from video signals and differential signals corresponding to particular scanning lines respectively by removing the distributed density portions having a larger pulse width in the scanning line direction, or removing smaller differential value portions in density, from the examined portions with higher density of flourescent magnetic powders thereon.