Ketahanan dan Kualitas Visual Watermarked Image Menggunakan Integer Wavelet Transform (IWT) dan Chinese Remainder Theorem (CRT)
نویسندگان
چکیده
<p class="Abstrak">Kemudahan untuk mengakses dan berbagi media digital saat ini menimbulkan kekhawatiran mengenai pelanggaran hak cipta atau pembajakan. Sehingga perlu memberikan identitas kepada setiap agar tidak mudah dibajak diklaim oleh pihak-pihak yang bertanggung jawab. Salah satu cara pada suatu tanpa mengurangi kualitas dari medianya sendiri yaitu dengan menggunakan watermarking. Pada paper mengusulkan metoda watermarking gabungan <em>Integer Wavelet Transform</em> (IWT) <em>Chinese Remainder Theorem</em> (CRT) menghasilkan visual ketahanan baik beberapa serangan. Hasil penelitian diperoleh nilai-nilai <em>Peak Signal-to-Noise Ratio</em> (PSNR) mendekati 1 <em>Normalized Correlation Coefficient</em> (NCC) sama 0,71337, menunjukkan metode IWT CRT mampu watermarked image <em>imperceptibility</em> terhadap serangan seperti gaussian, salt &amp; pepper kompresi JPEG2000 tetapi tahan rotasi kontras karena nilai NCC dibawah 0,5 </p><p class="Abstrak"><em><strong>Abstract</strong></em></p><p class="Abstract">Today's ease of accessing and sharing raises concerns about copyright infringement or piracy. So it is necessary to give identity each so that not easily hijacked claimed by irresponsible parties. One way a without reducing the quality itself use This proposes method using combination Integer Transform Chinese Theorem produce with good resistance from several attacks. The results obtained Peak Ratio values are close Normalized Coefficient equal 0.71337. shows methods able images imperceptibility provide attacks such as compression but resistant rotation contrast because value below 0.5</p>
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ژورنال
عنوان ژورنال: Jurnal Teknologi Informasi dan Ilmu Komputer
سال: 2023
ISSN: ['2528-6579', '2355-7699']
DOI: https://doi.org/10.25126/jtiik.20231026138