overmask_scale_mainframes
Georg Legato 2023-05-19 02:27:13 +02:00
parent 987e45a225
commit 5f3e646a3d
1 changed files with 0 additions and 81 deletions

View File

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"""
def calculate_interpolation_steps_goldenratio(self,original_size, target_size, steps):
width, height = original_size
target_width, target_height = target_size
golden_ratio = (1 + 5 ** 0.5) / 2 - 1 # Approx. 0.618
if width <= 0 or height <= 0 or target_width <= 0 or target_height <= 0 or steps <= 0:
return None
original_ratio = width / height
scaling_steps = []
for i in range(1, steps + 1):
t = i / steps
factor = 1 - golden_ratio * t
new_width = width * factor + target_width * (1 - factor)
new_height = height * factor + target_height * (1 - factor)
floor_width, ceil_width = int(new_width // 1), int(new_width // 1 + 1)
floor_height, ceil_height = int(new_height // 1), int(new_height // 1 + 1)
floor_ratio = floor_width / floor_height
ceil_ratio = ceil_width / ceil_height
if abs(floor_ratio - original_ratio) < abs(ceil_ratio - original_ratio):
new_width, new_height = floor_width, floor_height
else:
new_width, new_height = ceil_width, ceil_height
scaling_steps.append((new_width, new_height))
return scaling_steps
def calculate_interpolation_steps_log(self, original_size, target_size, steps):
width, height = original_size
target_width, target_height = target_size
if width <= 0 or height <= 0 or target_width <= 0 or target_height <= 0 or steps <= 0:
return None
original_ratio = width / height
scaling_steps = []
log_w_ratio = math.log(target_width / width) / steps
log_h_ratio = math.log(target_height / height) / steps
for i in range(1, steps):
new_width = width * math.exp(i * log_w_ratio)
new_height = height * math.exp(i * log_h_ratio)
floor_width, ceil_width = int(new_width // 1), int(new_width // 1 + 1)
floor_height, ceil_height = int(new_height // 1), int(new_height // 1 + 1)
floor_ratio = floor_width / floor_height
ceil_ratio = ceil_width / ceil_height
if abs(floor_ratio - original_ratio) < abs(ceil_ratio - original_ratio):
new_width, new_height = floor_width, floor_height
else:
new_width, new_height = ceil_width, ceil_height
scaling_steps.append((new_width, new_height))
# Add the last step that is one pixel away from the target size
scaling_steps.append((target_width - 1, target_height - 1))
return scaling_steps
def calculate_interpolation_steps_exponential(self, original_size, target_size, steps,exponent=2):
width, height = original_size
target_width, target_height = target_size
scaling_steps = []
for i in range(1, steps + 1):
t = i / steps
factor = (1 - t) + t * (math.pow(t, exponent - 1))
new_width = width * (1 - factor) + target_width * factor
new_height = height * (1 - factor) + target_height * factor
scaling_steps.append((math.floor(new_width), math.floor(new_height)))
return scaling_steps
"""