پديد آورنده :
مقاره عابد، زهرا
عنوان :
دقت رنگي تكنيك هاي مختلف كاهش رنگ تصاوير ديجيتالي
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
شيمي نساجي و علوم رنگ
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده نساجي
صفحه شمار :
نه،60ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
حسين ايزدان، عبدالكريم حسيني
توصيفگر ها :
استتار , انتقال فضا رنگ , خوشه بندي
تاريخ نمايه سازي :
21/12/92
استاد داور :
هاله خليلي، داريوش سمناني
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
61 Colorimetric accuracy of applying different colour reduction techniques on digital images Zahra Moghareabed z moghareabed@tx iut ac ir Date of Submission Department of Textile Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Supervisor s Name Dr H Izadan Email izadan@cc iut ac ir Abstract Colour reduction of digital images in its common uses is used for reducing image processing time or for the possibility of printing images of appropriate quality by a printer in these applications the overall image quality is considered In some other applications colour reduction is merely done to choose the suitable colour and this is the colour accuracy of the chosen colours which is significant such as choosing colour for military camouflage uniforms to have better colour similarity with its surrounding or hiding out a structure in urban environment to improve the beauty of a city In such applications the most important factor is the accuracy of the colour selection In the present research four images of different forest environments were chosen and to select camouflage colours K means clustering fuzzy C means clustering and diversity methods were performed The K means clustering method was performed in CIEL a b colour space by applying CIELAB and CIEDE2000 colour difference formulas and it was also performed in RGB colour space by Euclidean distance formula It is noteworthy to mention that the RGB values of the pixels of the images firstly transformed to CIEL a b values for the accuracy of color reproduction both in the digital camera and in the LCD monitor used in the present research The LCD monitor was characterized using a Lacie Blue eye pro colourimeter and its software package Then the forest images were printed with high quality and photographed in a calibrated condition and the colours of the images were reduced into 4 colours using the aforementioned colour reduction methods By using a Matlab GUI environment each of the photographed forest images was considered as the background of the main image of the experiment and on each of the backgrounds 35 different locations were chosen A small camouflaged image was placed
استاد راهنما :
حسين ايزدان، عبدالكريم حسيني
استاد داور :
هاله خليلي، داريوش سمناني
