TheimagequalityanalysistechniquesofTV-Satelliteimagescome fromthesignificantprocessingofhighimportanceofimageinformation inthemultimediaworld.Inthisresearch,thequalityofTV-Satellite
imagesonthethreesatellites(Arabsat,HotbirdandNilesat)wasstudied toestimatethebestqualityimage.Anumberofimagequalitymetrics havebeenintroduced.Theintroducedimagequalitymetricsconsistof
twomethods.Thefirstmethodiscalledthecontrastofimageedgesand the secondmethodiscalledthecrosscorrelation.Inthecontrastofimageedgesmethod,theedgeshavebeen
extractedfromtheimagebyapplyingSobeledgedetectorontheR,G,B andLcomponentsusingdifferentthresholdvalues.Theamount,the SNR,themeanandthestandarddeviationofimageedgeswere
calculatedforallR,G,BandLcomponents.Thecontrastofimageedges metric had been determined for different threshold values using Michelsonformula.TheMichelsoncontrastequationwasmodifiedin
differentwaystopresentnumberofcontrastapproachesthatappliedon theedgesoftheimage.
TU-satellite image analysis and quality estimation
number:
2250
English
College:
department:
Degree:
Supervisor:
Dr.AliAbidDawoodAl-Zuky
year:
2009
