[x1, y1, x2, y2, x3, y3, x4, y4]
Representing the coordinates of four vertices of a quadrilateral, arranged clockwise.
Namely:
- Top-left: (x1, y1)
- Top-right: (x2, y2)
- Bottom-right: (x3, y3)
- Bottom-left: (x4, y4)
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[x1, y1, x2, y2, x3, y3, x4, y4]
Representing the coordinates of four vertices of a quadrilateral, arranged clockwise.
Namely:
Image coordinate system (origin at top-left corner)
┌────────────width───────────> x
│(0,0)
│
│
│ (x1,y1) ────────── (x2,y2)
│ │ │
height Text area
│ │ │
│ (x4,y4) ────────── (x3,y3)
│
v
y
