Journal of Applied Mathematics / 2013 / Article / Tab 3

Research Article

An Extended DCT Domain Watermarking for Robot Vision against Geometric Image Attacks

Table 3

Experimental units.

Extraction rate(no. of successfully extracted texts/total no. of texts inserted) * 100
PSNRShows the difference in image or voice using a numerical value.
Insertion speedThe time taken to embed a watermark.
Extraction speedThe time taken to extract a watermark.

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