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Visualization and interpretation of data in social networks
Jirák, Jakub ; Burget, Radim (referee) ; Atassi, Hicham (advisor)
Bachelors thesis examines the acquisition and interpretation of data from social network Facebook. In this thesis is used Qt development environment used Qt version 5.4.1 in combination with javascript. This software application is designed for operating system Windows. In the created application is used javascript in combination with QML. Javascript caters to visualize contacts and relations between them, while QML cares about the structure of the program itself.
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An alternative JPEG coder/decoder
Jirák, Jakub ; Kiska, Tomáš (referee) ; Rajmic, Pavel (advisor)
The JPEG codec is currently the most widely used image format. This work deals with the design and implementation of an alternative JPEG codec using proximal algorithms in combination with the fixation of points from the original image to suppression of artifacts created in common JPEG coding. To solve the problem, the prox_TV and then the Douglas-Rachford algorithm were used, for which special functions using l_1-norm for image reconstruction were derived. The results of the proposed solution are very good because they can effectively suppress the artefacts created and the result corresponds to the image with a higher set qualitative factor. The proposed method achieves very good results for both simple images and photos, but in the case of large images (1024 × 1024 px) and larger, a large amount of computing time is required, so the method is more suitable for smaller images.
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An alternative JPEG coder/decoder
Jirák, Jakub ; Kiska, Tomáš (referee) ; Rajmic, Pavel (advisor)
The JPEG codec is currently the most widely used image format. This work deals with the design and implementation of an alternative JPEG codec using proximal algorithms in combination with the fixation of points from the original image to suppression of artifacts created in common JPEG coding. To solve the problem, the prox_TV and then the Douglas-Rachford algorithm were used, for which special functions using l_1-norm for image reconstruction were derived. The results of the proposed solution are very good because they can effectively suppress the artefacts created and the result corresponds to the image with a higher set qualitative factor. The proposed method achieves very good results for both simple images and photos, but in the case of large images (1024 × 1024 px) and larger, a large amount of computing time is required, so the method is more suitable for smaller images.
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|
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Visualization and interpretation of data in social networks
Jirák, Jakub ; Burget, Radim (referee) ; Atassi, Hicham (advisor)
Bachelors thesis examines the acquisition and interpretation of data from social network Facebook. In this thesis is used Qt development environment used Qt version 5.4.1 in combination with javascript. This software application is designed for operating system Windows. In the created application is used javascript in combination with QML. Javascript caters to visualize contacts and relations between them, while QML cares about the structure of the program itself.
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