605
The proposed techniques for recovering the embedded codes are based on a combination of Mathematical Morphology and an innovative de-noising algorithm based on optimal image filtering techniques .
 concept or principle: Mathematical; concept or principle: algorithm; concept or principle: image
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
 Entities: Mathematical, algorithm, image 
Answer:
 concept or principle: Mathematical; concept or principle: algorithm; concept or principle: image