2007
DOI: 10.1109/tce.2007.4429280
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Brightness Preserving Dynamic Histogram Equalization for Image Contrast Enhancement

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Cited by 835 publications
(392 citation statements)
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“…Using this concept, Ramaraj et al [4], proposed a homomorphic filtering technique. By applying frequency domain transformation to the input image using DFT and appropriate design of Butterworth filter they claimed to obtain an enhancement result compared to contrast limited adaptive histogram equalization (CLAHE) [5]. More recently, Okuhata et al [6] applied retinex theory to the problem of CVE image enhancement [7].…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Using this concept, Ramaraj et al [4], proposed a homomorphic filtering technique. By applying frequency domain transformation to the input image using DFT and appropriate design of Butterworth filter they claimed to obtain an enhancement result compared to contrast limited adaptive histogram equalization (CLAHE) [5]. More recently, Okuhata et al [6] applied retinex theory to the problem of CVE image enhancement [7].…”
Section: Introductionmentioning
confidence: 99%
“…Attar et al [14] combined histogram equalization with an edge preserving process to enhance WCE images. Other similar works include [5,15,16]. Among recent computational methods that are proposed for capsule endoscopy image enhancement include Rukundo et al [17], where the authors proposed an algorithm that uses a half-unit weighted-bilinear filter for darker areas and threshold weighted-bilinear method to avoid overexposure and enlargement of specular highlight spots while preserving the hue.…”
Section: Introductionmentioning
confidence: 99%
“…Originally, Isaac Newton had described the decomposition of sunlight into the colour spectrum when passing it through a glass prism in 1666. [3].…”
Section: Introductionmentioning
confidence: 99%
“…It is claimed that DSIHE is better than BBHE in term of brightness preserving. The input histogram divided based on its shape was realized [3], [4]. Yang et al proposed a simple method named bin underflow and bin overflow (BUBO) [5].…”
Section: Introductionmentioning
confidence: 99%