A comparison of contrast measurements in passive autofocus systems for low contrast images.
Xin XuYinglin WangXiaolong ZhangShunxin LiXiaoming LiuXiaofeng WangJinshan TangPublished in: Multim. Tools Appl. (2014)
Keyphrases
- low contrast
- high contrast
- contrast enhancement
- enhanced image
- speckle noise
- fully automatic
- background noise
- mammographic images
- accurate segmentation
- gray value
- blood vessels
- cell nuclei
- high noise
- image gradient
- cell segmentation
- input image
- imaging modalities
- image enhancement
- gray level
- intensity variations
- image data
- image segmentation
- quantitative evaluation
- image analysis
- watershed transform
- sar images
- edge detection
- segmentation method
- image registration
- region of interest
- quantitative analysis
- image retrieval