Fix white lines, generate images for border printing
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parent
088181085e
commit
b0eabd1297
3 changed files with 49 additions and 27 deletions
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@ -2,13 +2,18 @@ from pathlib import Path
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from PIL import Image
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from base_proxy import LEAVE_BLEED_INCHES
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from base_proxy import BASE_DIR
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from sheet_layout import SheetLayout, CardImageTransfer
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W_INCHES_EXPECTED = 2.72
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H_INCHES_EXPECTED = 3.7
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BLEED_INCHES_EXPECTED = 0.12
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SAVE_INTERMEDIATE_FOR_DEBUG = False
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def make_intermediate_name(input_path: Path, infix: str):
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return BASE_DIR / 'cropped_cards' / f'{input_path.stem}.{infix}.jpg'
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class InputCardImage:
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@ -28,30 +33,43 @@ class InputCardImage:
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if dpi_by_h != dpi_by_w:
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print(f'By height dpi is different: {dpi_by_h} dpi')
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self.input_dpi = dpi_by_w
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self.original_im = im
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self.original_im = rgb_im
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def get_cropped_and_resized(self, layout: SheetLayout, transfer: CardImageTransfer) -> Image:
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new_dpi = layout.dpi
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self.load()
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im = self.original_im
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print(f'Input is {im.size[0]} x {im.size[1]}')
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# Resize to match sheet DPI
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new_w = layout.in_to_px(W_INCHES_EXPECTED)
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new_h = layout.in_to_px(H_INCHES_EXPECTED)
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print(f'Resized input to {new_w} x {new_h}')
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im = im.resize((new_w, new_h), resample=Image.Resampling.LANCZOS)
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if SAVE_INTERMEDIATE_FOR_DEBUG:
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im.save(make_intermediate_name(self.path, 'step1resize'), 'JPEG', dpi=(layout.dpi, layout.dpi), quality=100, subsampling=0)
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# Crop
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top_bleed, bottom_bleed, left_bleed, right_bleed = transfer.bleeds
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crop_pixels_leaving_bleed = layout.in_to_px(BLEED_INCHES_EXPECTED - LEAVE_BLEED_INCHES)
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crop_pixels_no_bleed = layout.in_to_px(BLEED_INCHES_EXPECTED)
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top_crop = crop_pixels_leaving_bleed if top_bleed else crop_pixels_no_bleed
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bottom_crop = crop_pixels_leaving_bleed if bottom_bleed else crop_pixels_no_bleed
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left_crop = crop_pixels_leaving_bleed if left_bleed else crop_pixels_no_bleed
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right_crop = crop_pixels_leaving_bleed if right_bleed else crop_pixels_no_bleed
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left = (new_w - layout.card_w) // 2
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right = left + layout.card_w
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top = (new_h - layout.card_h) // 2
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bottom = top + layout.card_h
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if transfer.bleeds[0]:
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top -= layout.leave_bleed
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if transfer.bleeds[1]:
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bottom += layout.leave_bleed
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if transfer.bleeds[2]:
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left -= layout.leave_bleed
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if transfer.bleeds[3]:
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right += layout.leave_bleed
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# Crop
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crop_box = (left_crop, top_crop, new_w - right_crop, new_h - bottom_crop)
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crop_box = (left, top, right, bottom)
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print(f'Cropped box {crop_box}')
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im = im.crop(crop_box)
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if SAVE_INTERMEDIATE_FOR_DEBUG:
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im.save(make_intermediate_name(self.path, 'step2crop'), 'JPEG', dpi=(layout.dpi, layout.dpi), quality=100, subsampling=0)
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return im
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@ -14,7 +14,7 @@ import util
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CUT_GUIDE_WIDTH_INCHES = 0.006
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LENGTH_CUT_GUIDE_INCHES = 0.06
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LENGTH_CUT_GUIDE_INCHES = 0.04
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def gather_images(directory: Path) -> List[Path]:
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@ -43,7 +43,7 @@ def create_sheet(input_cards: List[InputCardImage], sheet_filepath: Path, layout
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color = 'black'
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guide_thickness = layout.in_to_px(CUT_GUIDE_WIDTH_INCHES)
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for x_index in range(layout.cards_per_column):
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for x_index in range(layout.cards_per_row):
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left_x = layout.card_area_left_xs[x_index]
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right_x = layout.card_area_right_xs[x_index]
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min_y = layout.min_padding
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@ -51,7 +51,7 @@ def create_sheet(input_cards: List[InputCardImage], sheet_filepath: Path, layout
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draw.line([(left_x, min_y), (left_x, max_y)], fill=color, width=guide_thickness)
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draw.line([(right_x, min_y), (right_x, max_y)], fill=color, width=guide_thickness)
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for y_index in range(layout.cards_per_row):
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for y_index in range(layout.cards_per_column):
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top_y = layout.card_area_top_ys[y_index]
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bottom_y = layout.card_area_bottom_ys[y_index]
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min_x = layout.min_padding
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@ -107,7 +107,7 @@ def main():
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all_input_cards = [InputCardImage(p) for p in all_input_cards_paths]
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layout = sheet_layout.letter_portrait_3x3_sheet_layout()
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layout = sheet_layout.letter_portrait_3x3_sheet_layout_120milborder()
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sheets_dir = BASE_DIR / 'sheets'
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sheets_dir.mkdir(parents=True, exist_ok=True)
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total_sheet_number = math.ceil(len(all_input_cards) / layout.cards_per_sheet)
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@ -12,7 +12,7 @@ class CardImageTransfer:
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class SheetLayout:
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def __init__(self, dpi: int, w_inches: float, h_inches: float, internal_bleed: bool):
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def __init__(self, dpi: int, w_mils: int, h_mils: int, internal_bleed: bool, paper_border_mils: int):
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self.dpi = dpi
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self.card_w_inches = CARD_W_INCHES
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@ -20,17 +20,14 @@ class SheetLayout:
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self.card_w = self.in_to_px(self.card_w_inches)
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self.card_h = self.in_to_px(self.card_h_inches)
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self.w_inches = w_inches
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self.h_inches = h_inches
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self.w = self.in_to_px(self.w_inches)
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self.h = self.in_to_px(self.h_inches)
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self.w = self.mil_to_px(w_mils)
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self.h = self.mil_to_px(h_mils)
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self.leave_bleed = self.in_to_px(LEAVE_BLEED_INCHES)
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self.spacing_inches = 0.05 if internal_bleed else 0
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self.spacing = self.in_to_px(self.spacing_inches)
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self.min_padding_inches = 0.12
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self.min_padding = self.in_to_px(self.min_padding_inches)
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self.min_padding = self.mil_to_px(paper_border_mils)
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paste_area_left_xs = []
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paste_area_right_xs = []
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@ -124,9 +121,12 @@ class SheetLayout:
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print(self.__dict__)
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def in_to_px(self, inches: float) -> float:
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def in_to_px(self, inches: float) -> int:
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return round(inches * self.dpi)
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def mil_to_px(self, mils: int) -> int:
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return mils * self.dpi // 1000
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def create_card_image_transfer(self, y_index: int, x_index: int) -> CardImageTransfer:
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top_row = y_index == 0
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bottom_row = y_index == self.cards_per_column - 1
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@ -144,10 +144,14 @@ class SheetLayout:
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return CardImageTransfer((paste_x, paste_y), bleeds)
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def letter_portrait_3x3_sheet_layout() -> SheetLayout:
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return SheetLayout(1200, 8.5, 11, False)
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def letter_portrait_3x3_sheet_layout_120milborder() -> SheetLayout:
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return SheetLayout(1200, 8500 - 2 * 120, 11000 - 2 * 120, False, 0)
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def letter_landscape_2x4_sheet_layout() -> SheetLayout:
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return SheetLayout(1200, 11, 8.5, False)
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def letter_portrait_3x3_sheet_layout_120milborderless() -> SheetLayout:
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return SheetLayout(1200, 8500, 11000, False, 120)
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def letter_landscape_2x4_sheet_layout_120milborderless() -> SheetLayout:
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return SheetLayout(1200, 11000, 8500, False, 120)
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