In the process of working out how to generate text to size

fourcell/apply_image.py

@@ -6,6 +6,28 @@ from os.path import exists, basename
 from common import image_resize, display, read_json
 
 holeConstant = .0156862745 # 160/10200
+fontConstant = 1/6000
+
+def generate_text (text, fontSize, rotation) :
+	print(rotation)
+	print(fontSize)
+	print(text)
+	print(len(text))
+	w = (fontSize * len(text))
+	h = (fontSize)
+	image = cv2.putText(image, text, (w/2, h/2), cv2.FONT_HERSHEY_PLAIN, 1, [0, 0, 0], 3, cv2.LINE_AA)
+
+def to_rotation (i) :
+	if i == 0 or i == 1 :
+		return 90
+	if i == 2 or i == 3 :
+		return -90
+
+def to_text (fileName) :
+	parts = fileName.split('.')
+	name = parts[0]
+	parts = name.split('_')
+	return parts[len(parts)-1]
 
 # use top left, top right, bottom left
 def apply_image_to_points (original, target, points) :
@@ -93,6 +115,7 @@ print(f"Image size {tmpl['width']}x{tmpl['height']}")
 
 hole = round(tmpl['width'] * holeConstant)
 blank = create_blank(tmpl['width'], tmpl['height'])
+fontSize = round(tmpl['width'] * fontConstant)
 #blank = cv2.imread(templateFile.replace('.calibration.json', ''))
 output = blank.copy()
 
@@ -104,8 +127,11 @@ for i in hp:
 for i in range(0, len(images)) :
 	frame = cv2.imread(images[i])
 	frame = cv2.cvtColor(frame, cv2.COLOR_RGB2RGBA)
-	cv2.imwrite(f'test{i}.png', output)
+	#cv2.imwrite(f'test{i}.png', output)
 	output = apply_image_to_points(output, frame, to_points(tmpl[f'{i}']))
+	rotation = to_rotation(i)
+	text = to_text(basename(images[i]))
+	generate_text(text, fontSize, rotation)
 	print(f'Applied {basename(images[i])}')
 
 output = cv2.cvtColor(output, cv2.COLOR_BGRA2BGR)

fourcell/notes/generate_text.py

@@ -0,0 +1,30 @@
+import cv2
+import numpy as np
+
+fontConstant = 1/6000
+w=10200
+fontSize = round(fontConstant*w)
+
+#(label_width, label_height), baseline = cv2.getTextSize(label, FONT, FONT_SCALE, FONT_THICKNESS)
+#label_patch = np.zeros((label_height + baseline, label_width, 3), np.uint8)
+#label_patch[:,:] = bg_color
+
+def generate_text (text, fontSize, rotation) :
+	rgb_color=(255,255,255)
+	color = tuple(reversed(rgb_color))
+	
+	print(rotation)
+	print(fontSize)
+	print(text)
+	print(len(text))
+	(w, h), baseline = cv2.getTextSize(text, (round(w/2), round(h/2)), cv2.FONT_HERSHEY_PLAIN, 1, [0, 0, 0], 3, cv2.LINE_AA)
+	w = (fontSize * len(text))
+	h = (fontSize)
+	print(f'{w}x{h}')
+	image = np.zeros((h + baseline, w, 3), np.uint8)
+	image[:] = color
+	image = cv2.cvtColor(image, cv2.COLOR_BGR2BGRA)
+	image = cv2.putText(image, text, (round(w/2), round(h/2)), cv2.FONT_HERSHEY_PLAIN, 1, [0, 0, 0], 3, cv2.LINE_AA)
+
+	cv2.imwrite('test.png', image)
+generate_text("example", fontSize, 90)