کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
537825 870910 2016 7 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله
An improved least-significant-bit substitution method using the modulo three strategy
ترجمه فارسی عنوان
روش تعویض بیت ـ قابل توجه ـ حداقل بهبودیافته با استفاده از استراتژی پیمانه سه
کلمات کلیدی
ظرفیت تعبیه بالا؛ استراتژی پیمانه سه؛ طرح LSB ؛ Steganalysis
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر سخت افزارها و معماری
چکیده انگلیسی


• We proposed a novel method to embed a series of ternary secret data based on LSB.
• The proposed scheme can hide two ternary numbers into each grayscale pixel, normally only modify the two LSBs of the pixel.
• Our proposed scheme has higher resistance ability and achieves a higher PSNR.

In this paper, we proposed a novel method to embed a series of ternary secret data into a cover image based on an improved Least-Significant-Bit (LSB) scheme using the modulo three strategy. Our new method can hide two ternary numbers into each grayscale pixel, normally only modify the two LSBs of the pixel, while it may cause overflow/underflow and a carry/borrow. We solve these problems by adding 1 to the pixel or subtracting 1 from the pixel before embedding. The embedding capacity of our method can be 3.1699 bpp. At the same time, the quality of the stego image of our new method also is better than traditional LSB scheme when the embedding capacity is greater than 3 bpp with a Peak Signal-to-Noise Ratio (PSNR) greater than 37 dB. Extensive experimental results indicated that our new method is capable of getting a higher PSNR than traditional LSB scheme when the embedding capacity is greater than 3 bpp, and it has higher resistance ability against the chosen steganalysis algorithm when the embedding capacity is low.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Displays - Volume 42, April 2016, Pages 36–42
نویسندگان
, , , ,