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US 4,907,286 AGranted
Image processing apparatus
AssigneeCanon Kabushiki Kaisha
InventorMasanori Yamada
Life of this patent
Estimating the term…
Abstract
An image processing apparatus has a CCD sensor for reading an original image, a means for setting a processing mode suitable for each original image, a detecting means for detecting the state of the original image, and a processing means for processing the image signal read by the sensor in accordance with the set processing mode and the detected image state.
Claims15
An image processing apparatus comprising:
- reading means for reading an original image and for outputting an image signal representing the original image;
- setting means for manually setting a desired processing mode for processing of the original image;
- detecting means for detecting image density levels of the original image based on the image signal read by said reading means;
- and
- processing means for processing the image signal from said reading means in accordance with a histogram of the image density levels detected by said detecting means, said processing means is adapted to process the image signal using a plurality of different processing methods in accordance with the histogram, and said processing means selects one of the plurality mode set by said setting means and processes the image signal using the selected processing method.
2 more elements
An image processing apparatus comprising:
- reading means for reading an original image and for outputting an image signal representing the original image;
- setting means for manually setting a desired processing mode for processing of the original image;
- detecting means for detecting image density levels of the original image;
- forming means for forming a plurality of different reference signals in accordance with a histogram of the image density levels detected by said detecting means;
- and
- processing means for processing the image signal from said reading means in accordance with one of the plurality of different reference signals formed by said forming means, wherein said processing means selects one of the plurality of different reference signals in accordance with the desired processing mode set by said setting means and processes the image signal using the selected reference signal.
3 more elements
Dependencies are inferred from the claim text.