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eyes:logics:compare [2017/06/08 15:35] bgraf |
eyes:logics:compare [2017/06/12 16:08] (current) bgraf |
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| ===== Usage ===== | ===== Usage ===== | ||
| - | Compares images with a given metric. If the number of images in the two inputs match. a 1-to-1 comparison will be performed. If the numbers dont match every images in input 1 will be compared to every image in input 2. Thereby the number of images in input 1 needs to be bigger number of images in input 2. | + | Compares images with a given metric if the number of images in the two inputs match. A 1 to -1 comparison will be performed. If the numbers dont match every images in input 1 will be compared to every image in input 2. Thereby the number of images in input 1 needs to be bigger number of images in input 2. |
| - | + | ===== Parameters and I/O ===== | |
| - | ===== Parameters ===== | + | |
| Different modes for comparing images can be chosen. | Different modes for comparing images can be chosen. | ||
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| | sum of absolute differences | Sum of Absolute Differences is used as comparison metric | | | sum of absolute differences | Sum of Absolute Differences is used as comparison metric | | ||
| - | ===== Inputs ===== | + | |< 100% 30% >| |
| - | + | ^ New/Changed Header Values ^ Description ^ | |
| - | **input1:** stack of images or single image (stack needs to contain equal or more images than //input2//) | + | | //ccc-/nmse-/phash-/sad-/frc-/cov-/mui-/pHashPeakHeight// | Comparison value of the two images from the inputs on that position with chosen metric | |
| - | + | | //ccc-/nmse-/phash-/sad-/frc-/cov-/mui-/pHashPeakReferenceIndex// | ImageID of the image from input2 that gives the highest metric value (only written if number of images in //input1// is bigger than number of images in //input2//) | | |
| - | **input2:** stack of images or single image (stack needs to contain equal or less images than //input1//) | + | |
| - | + | ||
| - | ===== Output ===== | + | |
| - | + | ||
| - | **output:** unchanged image stack from image1 containing a value for the metric (in case of unequal image numbers the best value) and the image number of the image from //input2// giving the highest metric value | + | |
| - | + | ||
| - | **Written Header Values:** | + | |
| - | * //ccc-/nmse-/phash-/sad-/frc-/cov-/mui-/pHashPeakHeight//: Comparison value of the two images from the inputs on that position with chosen metric | + | |
| - | * //ccc-/nmse-/phash-/sad-/frc-/cov-/mui-/pHashPeakReferenceIndex//: ImageID of the image from input2 that gives the highest metric value (only written if number of images in //input1// is bigger than number of images in //input2//) | + | |
| ===== Additional Information ===== | ===== Additional Information ===== | ||
| * [[https://en.wikipedia.org/wiki/Cross-correlation|Cross Correlation]] | * [[https://en.wikipedia.org/wiki/Cross-correlation|Cross Correlation]] | ||
| * [[https://rem.jrc.ec.europa.eu/RemWeb/atmes2/20b.htm|NMSE]] | * [[https://rem.jrc.ec.europa.eu/RemWeb/atmes2/20b.htm|NMSE]] | ||
| - | * [[http://ieeexplore.ieee.org/document/4041692/?arnumber=4041692|pHash]] | ||
| * [[https://en.wikipedia.org/wiki/Sum_of_absolute_differences|SAD]] | * [[https://en.wikipedia.org/wiki/Sum_of_absolute_differences|SAD]] | ||
| * [[https://en.wikipedia.org/wiki/Fourier_shell_correlation|Fourier Ring Correlation]] | * [[https://en.wikipedia.org/wiki/Fourier_shell_correlation|Fourier Ring Correlation]] | ||
| * [[https://en.wikipedia.org/wiki/Correlation_ratio|COV]] | * [[https://en.wikipedia.org/wiki/Correlation_ratio|COV]] | ||
| - | * [[https://en.wikipedia.org/wiki/Mutual_information|https://en.wikipedia.org/wiki/Mutual_information]] | ||