secondo/Algebras/Picture/Picture.examples

Database: testData/pictest
Restore : No

Operator : getCategory
Number   : 1
Signature: picture -> string
Example  : query theater getCategory
Result   : "photo-de"


Operator : colordist
Number   : 1
Signature: picture int -> histogram
Example  : query theater colordist [ 0 ]
Result   : file


Operator : cut
Number   : 1
Signature: picture x int x int x int x int -> picture
Example  : query (theater cut [ 100, 100, 400, 200 ]) getHeight
Result   : 200
Remark   : Result of the picture depends on the used Jpeg lib version

Operator : display
Number   : 1
Signature: picture -> bool
Example  : query paper display
Result   : bug
Remark   : not yet implemented for windows


Operator : equals
Number   : 1
Signature: picture x picture x int x int -> real
Example  : query paper theater equals [ 5, 100 ]
Result   : 0.0


Operator : export
Number   : 1
Signature: picture x text -> bool
Example  : query theater export [ 'theater1.jpg' ]
Result   : TRUE


Operator : getFilename
Number   : 1
Signature: picture -> string
Example  : query paper getFilename
Result   : "paper.jpg"


Operator : flipleft
Number   : 1
Signature: picture x int -> picture
Example  : query (paper getWidth) = (paper flipleft [ 1 ] getHeight)
Result   : TRUE


Operator : getHeight
Number   : 1
Signature: picture -> int
Example  : query paper getHeight
Result   : 533


Operator : importPicture
Number   : 1
Signature: text -> picture
Example  : query theater simpleequals importPicture ('theater.jpg')
Result   : TRUE



Operator : isgrayscale
Number   : 1
Signature: picture -> bool
Example  : query paper isgrayscale
Result   : FALSE


Operator : isportrait
Number   : 1
Signature: picture -> bool
Example  : query paper isportrait
Result   : FALSE


Operator : like
Number   : 1
Signature: picture x int x int x int x int -> bool
Example  : query paper like [ 50, 5, 100, 200 ]
Result   : FALSE

Operator : like
Number   : 2
Signature: picture x real x real x int x int -> bool
Example  : query theater like [ 50.0, 5.0, 100, 200 ]
Result   : FALSE


Operator : mirror
Number   : 1
Signature: picture x bool -> picture
Example  : query (paper getWidth) = (paper mirror [ TRUE ] getWidth)
Result   : TRUE


Operator : getPictureDate
Number   : 1
Signature: picture -> instant
Example  : query paper getPictureDate
Result   : (instant "2004-12-01")


Operator : scale
Number   : 1
Signature: picture x int x int -> picture
Example  : query paper scale [1000, 1066] getHeight
Result   : 1066


Operator : simpleequals
Number   : 1
Signature: picture x picture -> bool
Example  : query theater simpleequals theater2 
Result   : TRUE

Operator : simpleequals
Number   : 2
Signature: picture x picture -> bool
Example  : query theater simpleequals paper 
Result   : FALSE

Operator : simpleequals
Number   : 3
Signature: picture x picture -> bool
Example  : query theater simpleequals theater 
Result   : TRUE

Operator : getWidth
Number   : 1
Signature: picture -> int
Example  : query theater getWidth
Result   : 800

Operator : contains
Number   : 1
Signature: picture x picture -> bool
Example  : query theater contains (theater cut [100,100,200,200])
Result   : bug
Remark   : Due to the JPEG compression this operator does not work properly.

Operator  : distance
Number    : 1
Signature : hist_hsvD x hist_hsvD -> real
Example   : query distance( getHistHsv8(paper), getHistHsv8(paper))
Result    : (real 0.0)

Operator  : getHistHsv8 
Number    : 1
Signature : picture -> hist_hsv_8
Example   : query distance( getHistHsv8(paper), getHistHsv8(paper))
Result    : (real 0.0)

Operator  : getHistHsv16 
Number    : 1
Signature : picture -> hist_hsv_16
Example   : query distance( getHistHsv16(paper), getHistHsv16(paper))
Result    : (real 0.0)

Operator  : getHistHsv32 
Number    : 1
Signature : picture -> hist_hsv_32
Example   : query distance( getHistHsv32(paper), getHistHsv32(paper))
Result    : (real 0.0)

Operator  : getHistHsv64 
Number    : 1
Signature : picture -> hist_hsv_64
Example   : query distance( getHistHsv64(paper), getHistHsv64(paper))
Result    : (real 0.0)

Operator  : getHistHsv128 
Number    : 1
Signature : picture -> hist_hsv_128
Example   : query distance( getHistHsv128(paper), getHistHsv128(paper))
Result    : (real 0.0)

Operator  : getHistHsv256 
Number    : 1
Signature : picture -> hist_hsv_256
Example   : query distance( getHistHsv256(paper), getHistHsv256(paper))
Result    : (real 0.0)

Operator  : getHistLab256 
Number    : 1
Signature : picture -> hist_lab_256
Example   : query distance( getHistLab256(paper), getHistLab256(paper))
Result    : (real 0.0)