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import re
import gradio as gr
import numpy as np
from modules import scripts_postprocessing, shared
from modules.processing import setup_color_correction, apply_color_correction
from modules.ui import switch_values_symbol
from modules.ui_components import FormRow, ToolButton
from PIL import Image
upscale_cache = {}
class ScriptPostprocessingUpscale(scripts_postprocessing.ScriptPostprocessing):
name = "Upscale"
order = 1000
def ui(self):
selected_tab = gr.Number(value=0, visible=False)
with gr.Column():
with FormRow():
with gr.Tabs(elem_id="extras_resize_mode"):
with gr.Tab(
"Scale by",
elem_id="extras_scale_by_tab",
) as tab_scale_by:
upscaling_resize = gr.Slider(
label="Resize",
value=2.0,
minimum=1.0,
maximum=8.0,
step=0.05,
elem_id="extras_upscaling_resize",
)
with gr.Tab(
"Scale to",
elem_id="extras_scale_to_tab",
) as tab_scale_to:
with FormRow():
with gr.Column(elem_id="upscaling_column_size", scale=4):
upscaling_resize_w = gr.Slider(
minimum=64,
maximum=8192,
step=8,
label="Width",
value=512,
elem_id="extras_upscaling_resize_w",
)
upscaling_resize_h = gr.Slider(
minimum=64,
maximum=8192,
step=8,
label="Height",
value=512,
elem_id="extras_upscaling_resize_h",
)
with gr.Column(
elem_id="upscaling_dimensions_row",
elem_classes="dimensions-tools",
scale=1,
):
upscaling_res_switch_btn = ToolButton(
value=switch_values_symbol,
elem_id="upscaling_res_switch_btn",
tooltip="Switch width/height",
)
upscaling_crop = gr.Checkbox(
value=True,
label="Crop to fit",
elem_id="extras_upscaling_crop",
)
with gr.Column(scale=4):
with gr.Row():
extras_upscaler_1 = gr.Dropdown(
label="Upscaler 1",
elem_id="extras_upscaler_1",
choices=[x.name for x in shared.sd_upscalers],
value=shared.sd_upscalers[0].name,
)
extras_upscaler_2 = gr.Dropdown(
label="Upscaler 2",
elem_id="extras_upscaler_2",
choices=[x.name for x in shared.sd_upscalers],
value=shared.sd_upscalers[0].name,
interactive=False,
)
with gr.Row():
extras_color_correction = gr.Checkbox(
value=True,
label="Color Correction",
elem_id="extras_color_correction",
)
extras_upscaler_2_visibility = gr.Slider(
label="Upscaler 2 visibility",
value=0.0,
minimum=0.0,
maximum=1.0,
step=0.05,
elem_id="extras_upscaler_2_visibility",
)
upscaling_res_switch_btn.click(
lambda w, h: (h, w),
inputs=[upscaling_resize_w, upscaling_resize_h],
outputs=[upscaling_resize_w, upscaling_resize_h],
show_progress="hidden",
)
tab_scale_by.select(fn=lambda: 0, outputs=[selected_tab])
tab_scale_to.select(fn=lambda: 1, outputs=[selected_tab])
def on_selected_upscale_method(upscale_method: str):
if not (match := re.search(r"(\d)[xX]|[xX](\d)", upscale_method)):
return gr.skip()
return gr.update(value=int(match.group(1) or match.group(2)))
extras_upscaler_1.change(
on_selected_upscale_method,
inputs=[extras_upscaler_1],
outputs=[upscaling_resize],
show_progress="hidden",
)
extras_upscaler_2_visibility.change(
fn=lambda vis: gr.update(interactive=(vis > 0.0)),
inputs=[extras_upscaler_2_visibility],
outputs=[extras_upscaler_2],
show_progress="hidden",
)
return {
"upscale_mode": selected_tab,
"upscale_cc": extras_color_correction,
"upscale_by": upscaling_resize,
"upscale_to_width": upscaling_resize_w,
"upscale_to_height": upscaling_resize_h,
"upscale_crop": upscaling_crop,
"upscaler_1_name": extras_upscaler_1,
"upscaler_2_name": extras_upscaler_2,
"upscaler_2_visibility": extras_upscaler_2_visibility,
}
def _upscale(
self,
image,
info,
upscaler,
upscale_mode,
upscale_by,
upscale_to_width,
upscale_to_height,
upscale_crop,
):
if upscale_mode == 0:
info["Postprocess upscale by"] = upscale_by
else:
info["Postprocess upscale to"] = f"{upscale_to_width}x{upscale_to_height}"
upscale_by = max(
upscale_to_width / image.width,
upscale_to_height / image.height,
)
cache_key = (
hash(np.array(image.getdata()).tobytes()),
upscaler.name,
upscale_mode,
upscale_by,
upscale_to_width,
upscale_to_height,
upscale_crop,
)
cached_image = upscale_cache.pop(cache_key, None)
if cached_image is not None:
image = cached_image
else:
image = upscaler.scaler.upscale(image, upscale_by, upscaler.data_path)
upscale_cache[cache_key] = image
if len(upscale_cache) > shared.opts.upscaling_max_images_in_cache:
upscale_cache.pop(next(iter(upscale_cache), None), None)
if upscale_mode == 1 and upscale_crop:
cropped = Image.new("RGB", (upscale_to_width, upscale_to_height))
cropped.paste(
image,
box=(
upscale_to_width // 2 - image.width // 2,
upscale_to_height // 2 - image.height // 2,
),
)
image = cropped
info["Postprocess crop to"] = f"{image.width}x{image.height}"
return image
def process_firstpass(
self,
pp: scripts_postprocessing.PostprocessedImage,
upscale_mode=1,
upscale_cc=False,
upscale_by=2.0,
upscale_to_width=None,
upscale_to_height=None,
upscale_crop=False,
upscaler_1_name=None,
upscaler_2_name=None,
upscaler_2_visibility=0.0,
):
if upscale_mode == 1:
pp.shared.target_width = upscale_to_width
pp.shared.target_height = upscale_to_height
else:
pp.shared.target_width = int(pp.image.width * upscale_by)
pp.shared.target_height = int(pp.image.height * upscale_by)
if upscale_cc and "cc" not in upscale_cache:
upscale_cache["cc"] = setup_color_correction(pp.image)
def process(
self,
pp: scripts_postprocessing.PostprocessedImage,
upscale_mode=1,
upscale_cc=False,
upscale_by=2.0,
upscale_to_width=None,
upscale_to_height=None,
upscale_crop=False,
upscaler_1_name=None,
upscaler_2_name=None,
upscaler_2_visibility=0.0,
):
if upscaler_1_name == "None":
return
upscaler1 = None
for x in shared.sd_upscalers:
if x.name == upscaler_1_name:
upscaler1 = x
break
assert upscaler1 is not None, f'Could not find upscaler "{upscaler_1_name}"'
upscaled_image = self._upscale(
pp.image,
pp.info,
upscaler1,
upscale_mode,
upscale_by,
upscale_to_width,
upscale_to_height,
upscale_crop,
)
pp.info["Postprocess upscaler"] = upscaler1.name
if upscaler_2_visibility > 0.0:
if upscaler_2_name != "None":
upscaler2 = next(
(x for x in shared.sd_upscalers if x.name == upscaler_2_name),
None,
)
assert (
upscaler2 is not None
), f'Could not find upscaler "{upscaler_2_name}"'
second_upscale = self._upscale(
pp.image,
pp.info,
upscaler2,
upscale_mode,
upscale_by,
upscale_to_width,
upscale_to_height,
upscale_crop,
)
upscaled_image = Image.blend(
upscaled_image,
second_upscale,
upscaler_2_visibility,
)
pp.info["Postprocess upscaler 2"] = upscaler2.name
pp.info["Postprocess upscaler 2 visibility"] = upscaler_2_visibility
if upscale_cc:
pp.image = apply_color_correction(upscale_cache["cc"], upscaled_image)
else:
pp.image = upscaled_image
def image_changed(self):
upscale_cache.clear()
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