Image reading device
Patent 6212293 Issued on April 3, 2001. Estimated Expiration Date: 
June 24, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 24, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesSystem for expanding the video contrast of an image Extended initialization for personal data processing systems System and method for scanning medical images using adjustable exposure time and brightness Patent #: 5946407 InventorAssigneeApplicationNo. 103815 filed on 06/24/1998US Classes:382/168, HISTOGRAM PROCESSING382/132X-ray film analysis (e.g., radiography)ExaminersPrimary: Tadayon, BijanAssistant: Azarian, Seyed Attorney, Agent or FirmInternational ClassG06K 009/00Foreign Application Priority Data1997-06-25 JPAbstractThe image reading device has a pixel data reading processor, in which pixel data forming an image is read, and a histogram generating processor, in which a histogram representing a distribution of the pixel data is generated. The histogram is utilized when determining an optimum exposure time, for example. In the generation of the histogram by the histogram generating processor, not all of the pixel data are used. Namely, pixel data, from the maximum value through a first boundary value, and pixel data, from a second boundary value through the minimum value, are used. Since the pixel data, from the first boundary value through the second boundary value, are not utilized in generating the histogram, the capacity of the memory, in which the histogram is stored, can be reduced. | |
