Inlay

Author V. C. Mohan
Date Sep 14, 2005

Coloring only parts of areas present in a Mask clip is some times needed, as the mask might not have seperated the objects or coloring requirements are such. For this a separate clip on which demarcating lines (straight lines or curves) are drawn (using DrawLines Function) is used as a limiting condition. The lines must not have multiple values in the specified direction. The coloring process can additionally be limited to a rectangular window.

The clip will be colored using the mask clip only in areas within window and depending upon the inlay style selected further limited to:
   "left": window left edge to the first line recognized immediately to right
   "right": window right edge to the first line to its left
   "hint": the interval between first line to right of window left edge and the next line.
   "above": window top edge to the first line immediately below it.
   "below": window bottom edge to the first line immediately above it
   "vint": first line immediately below window top edge to the next line below it.
   "mask": Full window only controlled by mask. The lined clip is not refered though an input lined clip must exist
   "nomask": Full window without referring to mask. The mask and lined clips are not refered but must be specified. Window can be ellipse only for mask and nomask options

The color can be specified as RRGGBB format or as 1YYUUVV format. Note presence of a bit in higher position.
The Grey value of the image can be modified by adding st in case of shift or adding st% in case of stretch .
RGB32, RGB24, YUY2 and YV12 formats only are supported

Details of parameters
Description	Name	Type	Limits	Default
Input clip to be colored		clip		none
Mask clip		clip		none
Clip with lines		clip		none
Starting frame number to process	sf	integer	within clip	0
End frame number to process	ef	integer	within clip and not less than sf	last frame
Inlay style	style	string	"lef" "right" "vint" "above" "below" "hint" "mask" "nomask"	"hint"
fill color	color	integer	RRGGBB format or XXYYUUVV format	$7f7f00
grey value of lines on line clip	lval	integer	0 to 255	128
mask white marks to be used?	mwhite	boolean	true for white, false for black	true
Process window left (or center for ellipse) x at start frame	x	integer	within frame	0
Process window top (or center for ellipse) y at start frame	y	integer	within clip	0
Process window width (or semi axis along x for ellipse)at start frame	w	integer	within clip	frame width
Process window height (or semi axis along y for ellipse)at start frame	h	integer	within frame	frame height
shift or stretch grey value?	shift	boolean	true for shift or false for stretch	false
value of shift or stretch	st	integer	-255 to 255 for shift, -100 to reasonable for stretch	0
Process window left (or center for ellipse) x at end frame	ex	integer	within frame	x
Process window top (or center for ellipse) y at end frame	ey	integer	within clip	y
Process window width (or semi axis along x for ellipse)at end frame	ew	integer	within clip	w
Process window height (or semi axis along y for ellipse)at end frame	eh	integer	within frame	h

Usage examples:-
# for coloring area in Black ∓ White clip above the line and as per mask clip values
# in RRGGBB format
inlay(last,mask,lined,0,50,"above", color=$1f3253)
in YYUUVV format
inlay(last,mask2,slines,0,50,"below", color=$10f5477,mwhite=false)

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