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Gradio demo glyph image generation for multi-line, multi-mask text #35

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Gradio demo glyph image generation for multi-line, multi-mask text #35

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35 changes: 28 additions & 7 deletions app.py
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Original file line number Diff line number Diff line change
Expand Up @@ -133,26 +133,46 @@ def get_captions(ori_image, _input_file):
caption = f'{generated_text}, that reads "{_input_file}"'
return caption

def get_glyph_pos(mask, _input_file, width, height):
def get_glyph_pos(mask, _input_file, width, height, add_space=False):
mask = mask.astype('uint8')
contours, _ = cv2.findContours(mask, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
hint = mask / 255
glyph_scale = 1
glyphs = draw_glyph2(selffont, _input_file, contours[0], scale=glyph_scale, width=width, height=height)

return hint, glyphs
# Parse multiple texts: split by newlines
if isinstance(_input_file, str):
text_list = [t.strip() for t in _input_file.splitlines() if t.strip()]
else:
text_list = []

# Sort contours from top to bottom using top-most y
def contour_top_y(cnt):
ys = cnt[:, 0, 1] if len(cnt.shape) == 3 else cnt[:, 1]
return int(np.min(ys)) if ys.size > 0 else 0

contours = sorted(contours, key=contour_top_y)

# Compose glyphs by placing each text into the corresponding contour
glyphs_canvas = np.zeros((height, width, 1), dtype=np.float64)
for idx, cnt in enumerate(contours):
if idx >= len(text_list):
break
gly = draw_glyph2(selffont, text_list[idx], cnt, scale=glyph_scale, width=width, height=height, add_space=add_space)
glyphs_canvas = np.maximum(glyphs_canvas, gly)

return hint, glyphs_canvas

def brush_button_func(brush_image):
_mask = brush_image['layers'][0][:, :, :3]
_mask = np.where(_mask > 0, 255, 0)
return _mask[:,:,0], [_mask[:,:,0]]

def update_mask_func(edit_mask, edit_text):
def update_mask_func(edit_mask, edit_text, add_space):
background = edit_mask['background']
background = background[:, :, :3]
mask, _ = brush_button_func(edit_mask)

hint, glyphs = get_glyph_pos(mask, edit_text, background.shape[1], background.shape[0])
hint, glyphs = get_glyph_pos(mask, edit_text, background.shape[1], background.shape[0], add_space=add_space)
hint = hint.astype('uint8') * 255
glyphs = (1 - glyphs.astype('uint8') ) * 255
glyphs = glyphs[:,:,0]
Expand Down Expand Up @@ -226,7 +246,8 @@ def image_upload_func(image):
with gr.Column():
edit_mask = gr.ImageEditor(type="numpy", interactive=True)
with gr.Column():
edit_text = gr.Textbox(label="Input text")
edit_text = gr.Textbox(label="Input texts", lines=4, placeholder="Enter one text per line (top to bottom)")
add_space = gr.Checkbox(label="Add spacing to fill mask", value=False)
edit_btn = gr.Button("Generate glyph and mask")

prompt = gr.Textbox(label="Prompt")
Expand Down Expand Up @@ -263,7 +284,7 @@ def image_upload_func(image):
)
edit_btn.click(
update_mask_func,
inputs=[edit_mask, edit_text],
inputs=[edit_mask, edit_text, add_space],
outputs=[mask_img, glyph_img, prompt],
)

Expand Down
31 changes: 26 additions & 5 deletions app_low_VRAM.py
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Original file line number Diff line number Diff line change
Expand Up @@ -138,26 +138,46 @@ def get_captions(ori_image, _input_file):
caption = f'{generated_text}, that reads "{_input_file}"'
return caption

def get_glyph_pos(mask, _input_file, width, height):
def get_glyph_pos(mask, _input_file, width, height, add_space=False):
mask = mask.astype('uint8')
contours, _ = cv2.findContours(mask, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
hint = mask / 255
glyph_scale = 1
glyphs = draw_glyph2(selffont, _input_file, contours[0], scale=glyph_scale, width=width, height=height)

return hint, glyphs
# Parse multiple texts: split by newlines
if isinstance(_input_file, str):
text_list = [t.strip() for t in _input_file.splitlines() if t.strip()]
else:
text_list = []

# Sort contours from top to bottom using top-most y
def contour_top_y(cnt):
ys = cnt[:, 0, 1] if len(cnt.shape) == 3 else cnt[:, 1]
return int(np.min(ys)) if ys.size > 0 else 0

contours = sorted(contours, key=contour_top_y)

# Compose glyphs by placing each text into the corresponding contour
glyphs_canvas = np.zeros((height, width, 1), dtype=np.float64)
for idx, cnt in enumerate(contours):
if idx >= len(text_list):
break
gly = draw_glyph2(selffont, text_list[idx], cnt, scale=glyph_scale, width=width, height=height, add_space=add_space)
glyphs_canvas = np.maximum(glyphs_canvas, gly)

return hint, glyphs_canvas

def brush_button_func(brush_image):
_mask = brush_image['layers'][0][:, :, :3]
_mask = np.where(_mask > 0, 255, 0)
return _mask[:,:,0], [_mask[:,:,0]]

def update_mask_func(edit_mask, edit_text):
def update_mask_func(edit_mask, edit_text, add_space):
background = edit_mask['background']
background = background[:, :, :3]
mask, _ = brush_button_func(edit_mask)

hint, glyphs = get_glyph_pos(mask, edit_text, background.shape[1], background.shape[0])
hint, glyphs = get_glyph_pos(mask, edit_text, background.shape[1], background.shape[0], add_space=add_space)
hint = hint.astype('uint8') * 255
glyphs = (1 - glyphs.astype('uint8') ) * 255
glyphs = glyphs[:,:,0]
Expand Down Expand Up @@ -233,6 +253,7 @@ def image_upload_func(image):
with gr.Column():
edit_text = gr.Textbox(label="Input text")
edit_btn = gr.Button("Generate glyph and mask")
edit_btn = gr.Button("Generate glyph and mask")

prompt = gr.Textbox(label="Prompt")
seed = gr.Number(label="Seed", value=42)
Expand Down