Use username

fourcell/notes/affine_error.txt

@@ -0,0 +1,16 @@
+PLATFORM: Mac
+PYTHON: Python 3.10.8
+OPENCV: 4.7.0
+
+affine_poc.py works
+
+affine_poc2.py does not work
+	> background appears black
+	> happens with multiple jpegs
+
+
+PLATFORM: Linux
+PYTHON: Python 3.10.6
+OPENCV: 4.5.4
+
+Produces the same images

fourcell/notes/affine_poc2.py

@@ -1,11 +1,13 @@
 import cv2
 import numpy as np
+import os
+
+username = os.getlogin()
 
 #outer template
-outer = cv2.imread("../../../../Desktop/running/shot1-scans/image-2-normal.png")
+outer = cv2.imread(f"/home/{username}/Desktop/running/shot1-scans/image-2-normal.png")
 #inner image
-
-inner = cv2.imread("../../../../Desktop/frame.jpg")
+inner = cv2.imread(f"/home/{username}/Desktop/frame.jpg")
 
 rows, cols, ch = outer.shape
 ir, ic, ich = inner.shape
@@ -27,4 +29,5 @@ dst = cv2.warpAffine(inner, M, (cols, rows), borderMode=cv2.BORDER_TRANSPARENT)
 
 final = outer.copy()
 final[0:rows, 0:cols] = dst
+
 cv2.imwrite("affine_poc2.png", final)

fourcell/notes/affine_poc3.py

@@ -0,0 +1,32 @@
+import cv2
+import numpy as np
+import os
+
+username = os.getlogin()
+
+#outer template
+outer = cv2.imread(f"/home/{username}/Desktop/running/shot1-scans/image-2-normal.png")
+#inner image
+inner = cv2.imread(f"/home/{username}/Desktop/frame.jpg")
+
+rows, cols, ch = outer.shape
+ir, ic, ich = inner.shape
+
+print(f'{cols}x{rows}')
+print(f'{ic}x{ir}')
+
+# destination ponts on outer image
+pts1 = np.float32([[1445, 11429], [1445, 6832], [5009, 11429]])
+
+# corresponding points on inner image
+pts2 = np.float32([[0, 0], [ic, 0], [0, ir]])
+
+# transform inner to points on outer
+M = cv2.getAffineTransform(pts2, pts1)
+
+# apply
+dst = cv2.warpAffine(inner, M, (cols, rows), borderMode=cv2.BORDER_TRANSPARENT)
+
+final = outer.copy()
+final[0:rows, 0:cols] = dst
+cv2.imwrite("affine_poc2-dst.png", dst)