مشاركة
بعض نتائج طرق التحولات الرياضية وتطبيقها في ضغط الصورة == Some Results of Mathematical - Based Transformation Methods and their Application to Image Compression
اسم المؤلف:
هديل ماجد رشيد العاني
اسم المشرف:
علي حسن ناصر الفياض
الموضوع العام:
علوم الرياضيات
السنة:
2017
الموضوع الدقيق:
الرياضيات
الدرجة:
ماجستير
الجامعة:
جامعة النهرين
اللغة:
الانكليزية
مكان الجامعة:
بغداد
الصفحات الاولى:
27T1053 - p.pdf
المستخلص:
The main purpose of this thesis is to study and investigate the most important properties of integral transforms ( the discrete fourier transform, the discrete sine transform, and the discrete wavelet transform) and their mathematical aspects both from the theoretical point of view and for the application to image compression.As well as, we study the singular value decomposition method and its application to image representation.Two mathematical models are developed. The first model consists of a new multi - transform method that takes advantage of each of the discrete wavelet transform and the singular value decomposition method while the second model takes advantage of the discrete sine transform and the singular value decomposition method. These models are applied to compress images. Results show that this new approach yields better function representation and reconstruction in image compression application than is possible with the use of a single fixed transform. The proposed models improve the efficiency of the compressing process in the discrete wavelet transform and the discrete sine transform domains
