Sökning: "jpeg"
Visar resultat 21 - 25 av 40 uppsatser innehållade ordet jpeg.
21. En ny metod för steganalys
Kandidat-uppsats, Högskolan i Halmstad/Akademin för informationsteknologiSammanfattning : Metoderna för att använda steganografi har följt den tekniska utvecklingen och är idag digitalt etablerad. I den här uppsatsen introduceras ämnet ste- ganografi och det ges en omfattande beskrivning kring de tekniker som finns tillgängliga för steganografi och steganalys. LÄS MER
22. Pixel-based video coding
Uppsats för yrkesexamina på grundnivå, Institutionen för informationsteknologiSammanfattning : This paper studies the possibilities of extending the pixel-based compression algorithm LOCO-I, used by the lossless and near lossless image compression standard JPEG-LS, introduced by the Joint Photographic Experts Group (JPEG) in 1999, to video sequences and very low bit-rates. Bitrates below 1 bit per pixel are achieved through skipping signaling when the prediction of a pixels sufficiently good. LÄS MER
23. Uncertainty comparison of Digital Elevation Models derived from different image file formats
Kandidat-uppsats, Högskolan i Gävle/Avdelningen för Industriell utveckling, IT och SamhällsbyggnadSammanfattning : Unmanned Aerial Systems (UAS) have become increasingly popular recently for surveying and mapping because of their efficiency in acquiring remotely sensed data in a short amount of time and the low cost associated with them. They are used to generate digital elevation models (DEM) derived from aerial photography for various purposes such as the documentation of cultural heritage sites, archaeological surveying or earthwork volume calculations. LÄS MER
24. HDR och Tone mapping i automatiserade tullsystem
M1-uppsats, JTH, Data- och elektroteknikSammanfattning : This report is about how HDR (HighDynamicRange) can be created and used in combination with Tone mapping. This work has been carried out together with Kapsch TrafficCom AB in Jönköping. The objective of this project is to: Evaluate and investigate the effects given to pictures by HDR and tone mapping. LÄS MER
25. Custom Lossless Compression and High-Quality Lossy Compression of White Blood Cell Microscopy Images for Display and Machine Learning Applications
Master-uppsats, Lunds universitet/Matematik LTHSammanfattning : This master's thesis investigates both custom lossless compression and high-quality lossy compression of microscopy images of white blood cells produced by CellaVision's blood analysis systems. A number of different compression strategies have been developed and evaluated, all of which are taking advantage of the specific color filter array used in the sensor in the cameras in the analysis systems. LÄS MER