Nowadays devices are able to capture and process images from complex surveillance monitoring systems or from simple mobile phones. In certain applications, the time necessary to process the image is not as important as the quality of the processed images (e.g., medical imaging), but in other cases the quality can be sacrificed in favour of time. This thesis focuses on the latter case, and propo...

Wavelet transform has many good characteristics, used extensively in image fusion. In recent years, many algorithms have been developed, but there exist some inherent defects such as image blur, burr phenomenon, zigzag boundaries and image discontinuity. In this theory, without considering disadvantages of HVS, especially fused image should preserve brightness and texture features which are the...

In image enhancement various enhancement schemes have been used for enhancing which includes gray scale manipulation, filtering and Histogram Equalization (HE). Histogram equalization techniques using fuzzy logic is one of the unique image enhancement technique. It became a popular technique for contrast enhancement because this method is simple and effective. In the latter case, preserving the...

Generally, the global histogram equalization of contrast enhancement methods was used in various application fields because of its simple and effective function. But, as it has a disadvantage that the brightness of an image is changed excessively, in spite of heavy computational complexity, overlapped sub-block histogram equalization method reflecting local histogram properties is used mainly. ...

Department of Animal Nutrition, National Research Institute of Animal Production 32-083 Balice n. Kraków; (2) Department of Cattle Breeding, Agricultural University, 30-059 Kraków, Al. Mickiewicza 24/28; (3) Oncology Centre, Department of Imaging Diagnostics, 31-115 Kraków, Garncarska 11 Abstract To determine the development of secretory tissue of the mammary gland and to avoid the use of invas...

The brightness adjustment method for the night-vision image enhancement is considered in this paper. The color RGB night-vision image is transformed into an uncorrelated color space--the YUV space. According to the characteristics of the night-vision image, we develop the modified Retinex algorithm based on the S curve firstly, by which the luminance component is enhanced and the brightness of ...

Transformation functions utilizing the global information content of an input image have been long serving contrast enhancement by stretching the dynamic range of intensity levels. Other transformation functions focus on local information content to correct image details, such as edges and texture. In this paper, an effective method for image contrast enhancement is presented with a mapping fun...