Random mosaics

### Program Information

Name: Random mosaics
Domain: Graph and Image
Functionality: Change the value of two parameters in the implementation under test (IUT) to randomly generate the images of mosaics
Input: Parameter a,b
Output: different characteristics of the mosaics

#### Reference

 Statistical Metamorphic Testing – Testing Programs with Random Output by Means of Statistical Hypothesis Tests and Metamorphic Testing
10.1109/QSIC.2007.4385527  

### MR Information

#### MR1------

Description:
Property: the distributions of the characteristics of both samples should be equal by means of statistical hypothesis tests
Source input: $a_{1}$,$b_{1}$
Source output: the characteristics of the $mosaic_{1}$
Follow-up input: $a_{2}$,$b_{2}$
Follow-up output: the characteristics of the $mosaic_{2}$
Input relation:  $b_{1} \neq b_{2}$,$a_{1}=a_{2}$
Output relation: the distributions of the characteristics of both samples should be equal by means of statistical hypothesis tests
Pattern:

#### MR2------

Description:
Property: $k*k*mean_{1}=mean_{2}$
Source input: $a_{1}$,$b_{1}$
Source output: $mean_{1}$
Follow-up input: $a_{2}$,$b_{2}$
Follow-up output: $mean_{2}$
Input relation: $a_{2}=k*a_{1}$, $b_{1}=b_{2}$
Output relation: $k*k*mean_{1}=mean_{2}$
Pattern:
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