stable-diffusion-webui/scripts/postprocessing_split_oversi...

72 lines
2.4 KiB
Python

import math
from modules import scripts_postprocessing, ui_components
import gradio as gr
def split_pic(image, inverse_xy, width, height, overlap_ratio):
if inverse_xy:
from_w, from_h = image.height, image.width
to_w, to_h = height, width
else:
from_w, from_h = image.width, image.height
to_w, to_h = width, height
h = from_h * to_w // from_w
if inverse_xy:
image = image.resize((h, to_w))
else:
image = image.resize((to_w, h))
split_count = math.ceil((h - to_h * overlap_ratio) / (to_h * (1.0 - overlap_ratio)))
y_step = (h - to_h) / (split_count - 1)
for i in range(split_count):
y = int(y_step * i)
if inverse_xy:
splitted = image.crop((y, 0, y + to_h, to_w))
else:
splitted = image.crop((0, y, to_w, y + to_h))
yield splitted
class ScriptPostprocessingSplitOversized(scripts_postprocessing.ScriptPostprocessing):
name = "Split oversized images"
order = 4000
def ui(self):
with ui_components.InputAccordion(False, label="Split oversized images") as enable:
with gr.Row():
split_threshold = gr.Slider(label='Threshold', value=0.5, minimum=0.0, maximum=1.0, step=0.05, elem_id="postprocess_split_threshold")
overlap_ratio = gr.Slider(label='Overlap ratio', value=0.2, minimum=0.0, maximum=0.9, step=0.05, elem_id="postprocess_overlap_ratio")
return {
"enable": enable,
"split_threshold": split_threshold,
"overlap_ratio": overlap_ratio,
}
def process(self, pp: scripts_postprocessing.PostprocessedImage, enable, split_threshold, overlap_ratio):
if not enable:
return
width = pp.shared.target_width
height = pp.shared.target_height
if not width or not height:
return
if pp.image.height > pp.image.width:
ratio = (pp.image.width * height) / (pp.image.height * width)
inverse_xy = False
else:
ratio = (pp.image.height * width) / (pp.image.width * height)
inverse_xy = True
if ratio >= 1.0 and ratio > split_threshold:
return
result, *others = split_pic(pp.image, inverse_xy, width, height, overlap_ratio)
pp.image = result
pp.extra_images = [pp.create_copy(x) for x in others]