scholarly journals An improved scheme for image scaling, cropping and colour correction in encrypted domain

2021 ◽  
Vol 1 (1) ◽  
pp. 1
Author(s):  
Shushan Zhao
Keyword(s):  
Image Scaling

Video image scaling technology based on adaptive interpolation algorithm and TTS FPGA implementation

2021 ◽  
Vol 76 ◽  
pp. 103516
Author(s):  
Guangyu Liu ◽  
Bao Zhou ◽  
Yi Huang ◽  
Longfei Wang ◽  
Wei Wang ◽  
...  
Keyword(s):  
Fpga Implementation ◽  
Video Image ◽  
Interpolation Algorithm ◽  
Image Scaling ◽  
Adaptive Interpolation

Resolving power of optoelectronic converters in the image-scaling regime

2002 ◽  
Vol 69 (8) ◽  
pp. 558
Author(s):  
R. E. Bykov ◽  
F. Tsao
Keyword(s):  
Resolving Power ◽  
Image Scaling

scholarly journals POSITIONING IMAGES OF SEGMENTED OBJECTS BASED ON QT CROSS-PLATFORM ENVIRONMENT

2020 ◽  
pp. 18-26
Author(s):  
M. E. Golovkin
Keyword(s):  
Scaling Factor ◽  
Single Image ◽  
Image Scaling ◽  
Modern Methods ◽  
Scaling Methods ◽  
Cross Platform ◽  
Series Of Experiments ◽  
The Difference ◽  
Object Features ◽  
Minimum Ratio

The article provides information about the program developed on the basis of the Qt environment, which allows positioning the original image of an object within the field of attention in order to simplify the procedure for generating object features that are invariant to shift, change scale, and rotate its image. Provides an overview of modern methods and software tools for scaling images. The algorithm of the program and a series of computational experiments is described. During the first series, the program positions the image of a triangle within the field of attention using various scaling methods. According to the results of this series, it was concluded which method of scaling an image of an object gives the least loss of quality. In other series of experiments, the program centers and scales the images of a square and a circle inside the attention field with different sizes of the attention field (selection frame) corresponding to a single image scaling factor. Following the results of each series of xperiments, measurements of the sizes of positioned objects were carried out and the dependence of the ratio of their areas on the scaling factor was established. The difference between the maximum and minimum ratio of the coefficients for each series of experiments is calculated. On the basis of the data obtained, it was concluded that for further work with segmented objects of the scene and their positioning in the field of attention, the size of the selection frame of 256x256 pixels can be considered reference.

scholarly journals An Objective Image Quality Measurement Considering Skipped & Estimated Positions of Pixels in Image Scaling

2013 ◽  
Vol 16 (8) ◽  
pp. 934-942
Author(s):  
Won-Hee Kim ◽  
Kwang-Seok Moon ◽  
Jong-Nam Kim
Keyword(s):  
Image Quality ◽  
Quality Measurement ◽  
Image Scaling
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