摘要:
A correct exposure annunciator has an element to indicate a correct exposure. The indicating element is energized in normal flash photography to indicate correct exposure. When abnormal flash photography is carried out, the element is de-energized by a signal, representing the AE mode, and the light is turned off.
摘要:
The disclosed flash photography system operates in a first mode by controlling the flash on the basis of the distance information signals, and in a second mode by controlling the flash in response to the flash illumination of the object to be photographed. The system insures accurate flash photography by shifting from the first mode to the second mode when the camera uses a lens with a short focal length or with an attached filter.
摘要:
The present invention produces at least two sound signals such as warning signals or actuating signals by one sounder having a resonant frequency, wherein one of the sound signals is indicated by the resonant frequency of the sounder to enable a higher intensity sound to be produced.
摘要:
An interchangeable lens barrel includes connection terminals on a part of the lens barrel for sending and receiving electrical signals to and from a photographic apparatus. The lens barrel part is provided with a mechanism for protecting the connection terminals by covering the terminals when the lens barrel is removed from the photographic apparatus. When the lens barrel is mounted on the photographic apparatus, the protecting mechanism is retracted from the terminals to allow for connection with corresponding terminals on the photographic apparatus.
摘要:
The disclosed safety device electrically senses the conductivity between the electrical contacts of a camera and an accessory attached thereto, and, upon detection of a failure in conductivity, produces a warning signal for the user.
摘要:
An image processing apparatus includes an image forming part for forming images by discharging liquid ink from a plurality of recording elements, a processing unit for processing image data in accordance with processing conditions corresponding to the recording elements, and a preparing unit for inputting read data obtained by reading the images formed by the image forming part and preparing the processing conditions by comparing the read data with standard values preset depending on the kinds of recording agents. An image processing method including the steps of comparing standard values previously set depending on the kinds of recording agents with read data obtained by reading pattern images having a plurality of gradations recorded by an image recording part, and preparing a correction table for each of the recording elements. A recording medium on which a program is recorded so as to be read by a computer, in which standard values previously set depending on the kinds of recording agents are compared with read data obtained by reading pattern images having a plurality of gradations recorded by an image recording part with a plurality of recording elements and the program for preparing a correction table is recorded for each of the recording elements.
摘要:
There is a film image information reading apparatus called a film scanner. This apparatus comprises: a lighting optical system to illuminate a film document; a photoelectric conversion element, such as a CCD to convert the image information of the film document into the electric signal; and an adjusting circuit to adjust the output of the photoelectrical conversion element such that a predetermined density of the film document is output as an output of almost the saturation level of that element. The predetermined density is the color density of the base color of a negative film. The adjusting circuit may control the charge storage period, gain, or output level of the photoelectric conversion element. With this apparatus, the positive image can be easily derived by reversing the negative image without considering the base color of the negative film and the image signal of a high quality can be obtained.
摘要:
An image processing apparatus capable of extracting a particular image area from an image by designating a color hue of the desired particular image area. After indication on one or more points in an object region of interest, an initial range of hue or of brightness is designated, and a predetermined color is painted throughout a region adjacent to the indicated point(s) and having a hue or brightness, respectively, within the predetermined range. If that process results in the coloring of an area exceeding that which the operator desires to cover, the predetermined range of hue or brightness, as the case may be, is narrowed, and the process is repeated.
摘要:
A flash photography system including a computer type electronic flash device and a camera controlling the exposure value by using the light coming from an object to be photographed and reflected from the shutter curtain and/or film surface is disclosed. The leading and trailing curtains in the slit shutter of the system run down simultaneously when test firing occurs, and the flash device controls the amount of flash light in accordance with an equivalent reflected light from the shutter curtain surfaces to that from the film surface. When the aforesaid amount of light reflected has reached a prescribed level, an annunciator is energized to inform the operator that a correct exposure can be obtained.
摘要:
The type of color image is identified on the basis of a distribution of color information for each color. A plurality of different types of data compression algorithms prepared beforehand are changed according to the results of the identification. Preferably, the difference between the maximum value and the minimum value of each picture element of respective color separation data of a color image is determined, and further, a histogram of frequency of color information obtained for each color is determined. On the basis of the histogram, the type of the color image is identified by the fact that whether or not the histogram contains a peak greater than a predetermined value or whether or not the deviation of the histogram is greater than a predetermined value.