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High dynamic range imaging
Kupka, Petr ; Zach, Ondřej (referee) ; Slanina, Martin (advisor)
Bachelor thesis deals with basic principles of increasing the dynamic range of digital photography. The work also looks for the methods that are used to create high dynamic range (HDR) photography, and examines methods for compressing HDR images for low dynamic range (LDR) imaging. Implemented algorithms for tone mapping are performed in HDR_lab program created in Matlab.
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Advanced HDR image viewer
Wirth, Michal ; Křivánek, Jaroslav (advisor) ; Wilkie, Alexander (referee)
04.01.17 abstract.txt 1 file:///home/misa/Desktop/dp/abstract.txt The primary purpose of this thesis is to determine criteria for a high- dynamic range (HDR) image viewer accented by computer graphics artists and other users who work with HDR images produced by physically-based renderers on a daily basis. Also an overview of already existing solutions is present. Based on both of them, a new HDR viewer is designed and implemented giving an emphasis on its memory and performance efficiency. For these purposes two alternative image data layouts, Array-of-Structures (AoS) and Structure-of-Arrays (SoA), are discussed and their impact is measured on the speed of an algorithm for changing image saturation which has been selected as a representative part of whole tone mapping process of the viewer. It has turned out that the latter type of layout allows the algorithm to run about 3 times faster or more under the conditions of a defined testing environment. The thesis has two main contributions. First it gives the above users a tool which could help them when working with HDR images. Second it indicates that there may be a potential of significant speed-up of implementations of tone mapping algorithms.
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HDR Image Acquisition from Sequence of Images
Staněk, Jiří ; Maršík, Lukáš (referee) ; Musil, Martin (advisor)
This bachelor thesis deals with high dynamic range image acquisition based on composition of ordinary digital photographs. Using this composition method, a program with graphical user interface is implemented. This application is able to save created images with high dynamic range or convert them to figures that are displayable on common displays using tone mapping.
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HDR Tone-Mapping Acceleration on Xilinx Zynq Platform
Nosko, Svetozár ; Zemčík, Pavel (referee) ; Musil, Martin (advisor)
This diploma thesis focuses on the High-level synthesis (HLS). The first part deals with theoretical details and methods that are used in HLS tools. This is followed by a description of the synthesis tool Vivado HLS which will be used for implementation of an application. In the second part is briefly introduced high dynamic range images (HDR) and tone mapping. The third part is dedicated to design and implementation of the aplication which implements tone mapping methods in HDR images. This methods are implemented in Vivado HLS and language C++. This application is based on platform Xilinx Zynq and it uses multiexposure camera for capturing HDR images. Images are transmitted to FPGA for tone mapping processing.
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HDR Image Composition from Multiple Images
Raszka, Aleš ; Maršík, Lukáš (referee) ; Musil, Martin (advisor)
Bachelor thesis deals with the problems of the low dynamic range of today's cameras. This problem is solved by composing multiple images with different exposures into the final HDR image. The thesis also includes performances next part of the process, which is tone mapping. The issue is packed into the resulting library in C ++ that can create HDR image.
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HDR Composition for Dynamic Scene
Martinů, Lukáš ; Musil, Martin (referee) ; Maršík, Lukáš (advisor)
Master's thesis is focused on capturing of low dynamic range images using common devices such as camera and its multiple exposure. The main part of thesis is dedicated to composing these images to HDR image, inclusive sequence of images of static scenes, but also dynamic ones. Next part describes tone mapping used for display HDR image on LDR monitors. Moreover, there is given design and implementation of application solving problems mentioned earlier. In the end, the implemented application is evaluated and the possible continuation of this work is stated.
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Selected techniques for editation and retouching of portrait and figural photography
Pavlová, Petra ; Šedivá, Zuzana (advisor) ; Pour, Jan (referee)
The subject of this thesis is processing digital photography for the purposes of marketing. Specifically, it delimits, defines and describes selected techniques of treating portrait and figural photography. The thesis begins by briefly outlining the history of photography treatment. It describes the situation from the beginning of photography itself up to digital image reconstruction, showing the developments and changes in the philosophy of photography treatment. Three techniques of photography treatment are described: retouching, stylistic adjustment and image reconstruction. A simple manual containing examples of professional work is created for each technique. The manuals are based on commonly used processes and techniques of photography treatment and show frequent mistakes and some possible ways to avoid them. All photography treatment is done in Adobe Photoshop CS4.
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