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I am able to find rotation from transform matrix .
I have some python code that doesn't work predictabily as for position of the image from bounding box value .
Code: Select all
import math
import sys
#rotation : math.degrees(math.atan2(m2,m0)
c = input('membro a della matrice: ')
s = input('membro c della matrice: ')
px = input('spostamento x: ')
py = input('spostamento y: ')
x = input(' x: ')
y = input(' y: ')
width = input(' w: ')
hwidth = width/2
height = input('h: ')
hheight = height/2
scale = input('scale: ')
x1 = x -px + hwidth
y1 = y -py + hheight
x2 = 1/scale*(c * x1) + 1/scale*(s * y1)
print x2 + px - hwidth
x1 = x + px + hwidth
y1 = y + py + hheight
y2 = 1/scale*(-s * x1) + 1/scale*(c * y1)
print y2 - py - hheight