classer

type Classer struct {
	// BaseIndex is number of components already processed on fully processed pages.
	BaseIndex int
	// Settings are current classer settings.
	Settings Settings

	// Number of components on each page - 'nacomps'- for each page added to the classer a new entry to the slice
	// is added with the value of components per page.
	ComponentsNumber *basic.IntSlice
	// Width * Height of each template without extra border pixels - 'naarea'.
	TemplateAreas *basic.IntSlice

	// Widths is max width of original src images.
	Widths map[int]int
	// Heights is max height of original src images.
	Heights map[int]int

	// NumberOfClasses is the current number of classes - 'nclass'.
	NumberOfClasses int
	// ClassInstances is the slice of bitmaps for each class. Unbordered - 'pixaa'.
	ClassInstances *bitmap.BitmapsArray
	// UndilatedTemplates for each class. Bordered and not dilated - 'pixat'.
	UndilatedTemplates *bitmap.Bitmaps
	// DilatedTemplates for each class. Bordered and dilated - 'pixatd'.
	DilatedTemplates *bitmap.Bitmaps

	// Hash table to find templates by their size - 'dahash'.
	TemplatesSize basic.IntsMap
	// FgTemplates - foreground areas of undilated templates. Used for rank < 1.0 - 'nafgt'.
	FgTemplates *basic.NumSlice

	// CentroidPoints centroids of all bordered cc.
	CentroidPoints *bitmap.Points
	// CentroidPointsTemplates centroids of all bordered template cc.
	CentroidPointsTemplates *bitmap.Points
	// ClassIDs is the slice of class ids for each component - 'naclass'.
	ClassIDs *basic.IntSlice
	// ComponentPageNumbers is the slice of page numbers for each component - 'napage'.
	// The index is the component id.
	ComponentPageNumbers *basic.IntSlice
	// PtaUL is the slice of UL corners at which the template
	// is to be placed for each component.
	PtaUL *bitmap.Points
	// PtaLL is the slice of LL corners at which the template
	// is to be placed for each component.
	PtaLL *bitmap.Points
}

type Method int

type Settings struct {
	// MaxCompWidth is max component width allowed.
	MaxCompWidth int
	// MaxCompHeight is max component height allowed.
	MaxCompHeight int
	// SizeHaus is the size of square struct elem for hausdorf method.
	SizeHaus int
	// Rank val of hausdorf method match.
	RankHaus float64
	// Thresh is the threshold value for the correlation score.
	Thresh float64
	// Corrects thresh value for heavier components; 0 for no correction.
	WeightFactor float64
	// KeepClassInstances is a flag that defines if the class instances should be stored
	// in the 'ClassInstances' BitmapsArray.
	KeepClassInstances bool
	// Components is the setting the classification.
	Components bitmap.Component
	// Method is the encoding method.
	Method Method
}