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US 2009/0021648 A1Published application
Histogram equalizer and histogram equalization method
AssigneeSamsung Electronics Co., Ltd.
InventorsBeom Seok SHIN, Hyun Sang PARK
Life of this patent
Estimating the term…
Abstract
A histogram equalizer and histogram equalization method is provided. A histogram equalizer, including: a memory; and an operation unit which reads first data and second data from the memory, and then overwrites the second data of the memory with a summed value, the summed value being obtained by summing the read first data and the read second data.
Claims22
A histogram equalizer, comprising:
- a memory;
- and
- an operation unit which reads first data and second data from the memory, and then overwrites the second data of the memory with a summed value, the summed value being obtained by summing the read first data and the read second data.
A histogram equalizer, comprising:
- a memory;
- a frequency distribution generation unit which overwrites the memory with an added value as frequency distribution data every time an address is externally inputted, the added value being obtained by adding 1 to a value of the data of the memory corresponding to the address;
- and
- a cumulative distribution generation unit which stores cumulative distribution data in the memory, the cumulative distribution data being obtained by sequentially reading each of the stored frequency distribution data and summing up the stored frequency distribution data.
1 more element
A histogram equalization method, comprising:
- updating a value of data of a memory corresponding to an address and storing the updated value of data in the memory, every time the address is externally inputted;
- and
- storing cumulative distribution data in the memory, the cumulative distribution data being obtained by sequentially reading each of the updated data of the memory and summing up the read data.
A computer-readable recording medium storing a program for implementing a histogram equalization method, comprising:
- updating a value of data of a memory corresponding to an address and storing the updated value of data in the memory, every time the address is externally inputted;
- and
- storing cumulative distribution data in the memory, the cumulative distribution data being obtained by sequentially reading each of the updated data of the memory and summing up the read data.
Dependencies are inferred from the claim text.