forked from josch/img2pdf
src/img2pdf_test.py: also draw RGB letters to identify colors
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c5fd43e851
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F2CBA5C78FBD83E1
1 changed files with 57 additions and 14 deletions
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@ -548,6 +548,35 @@ def tiff_header_for_ccitt(width, height, img_size, ccitt_group=4):
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)
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pixel_R = [
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[1, 1, 1, 0],
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[1, 0, 0, 1],
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[1, 0, 0, 1],
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[1, 1, 1, 0],
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[1, 0, 0, 1],
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[1, 0, 0, 1],
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[1, 0, 0, 1],
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]
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pixel_G = [
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[0, 1, 1, 0],
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[1, 0, 0, 1],
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[1, 0, 0, 0],
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[1, 0, 1, 1],
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[1, 0, 0, 1],
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[1, 0, 0, 1],
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[0, 1, 1, 0],
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]
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pixel_B = [
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[1, 1, 1, 0],
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[1, 0, 0, 1],
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[1, 0, 0, 1],
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[1, 1, 1, 0],
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[1, 0, 0, 1],
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[1, 0, 0, 1],
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[1, 1, 1, 0],
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]
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def alpha_value():
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# gaussian kernel with sigma=3
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kernel = numpy.array(
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@ -583,6 +612,20 @@ def alpha_value():
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alpha[y + ypos, x + xpos] += color
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alpha = numpy.clip(alpha, 0, 0xFFFF)
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alpha = convolve_rgba(alpha, kernel)
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# draw letters
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for y, row in enumerate(pixel_R):
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for x, pos in enumerate(row):
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if pos:
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alpha[13 + y, 28 + x] = [0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF]
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for y, row in enumerate(pixel_G):
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for x, pos in enumerate(row):
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if pos:
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alpha[39 + y, 40 + x] = [0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF]
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for y, row in enumerate(pixel_B):
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for x, pos in enumerate(row):
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if pos:
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alpha[39 + y, 15 + x] = [0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF]
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return alpha
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@ -689,7 +732,7 @@ def tmp_alpha_png(tmp_path_factory, alpha):
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write_png(alpha, str(tmp_alpha_png), 16, 6)
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assert (
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hashlib.md5(tmp_alpha_png.read_bytes()).hexdigest()
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== "cc611e80cde3b9b7adb7723801a4e5d4"
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== "600bb4cffb039a022cec6ed55537deba"
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)
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yield tmp_alpha_png
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tmp_alpha_png.unlink()
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@ -708,7 +751,7 @@ def tmp_gray1_png(tmp_path_factory, alpha):
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)
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assert (
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hashlib.md5(tmp_gray1_png.read_bytes()).hexdigest()
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== "ff4d9f18de39be879926be2e65990167"
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== "dd2c528152d34324747355b73495a115"
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)
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yield tmp_gray1_png
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tmp_gray1_png.unlink()
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@ -727,7 +770,7 @@ def tmp_gray2_png(tmp_path_factory, alpha):
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)
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assert (
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hashlib.md5(tmp_gray2_png.read_bytes()).hexdigest()
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== "d51900476658a1c9dd26a7b27db8a21f"
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== "68e614f4e6a85053d47098dad0ca3976"
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)
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yield tmp_gray2_png
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tmp_gray2_png.unlink()
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@ -746,7 +789,7 @@ def tmp_gray4_png(tmp_path_factory, alpha):
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)
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assert (
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hashlib.md5(tmp_gray4_png.read_bytes()).hexdigest()
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== "722223ba74be9cba1af4a549076b70d3"
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== "ff04a6fea88133eb77bbb748692ae0fd"
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)
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yield tmp_gray4_png
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tmp_gray4_png.unlink()
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@ -760,7 +803,7 @@ def tmp_gray8_png(tmp_path_factory, alpha):
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write_png(gray16 / 0xFFFF * 0xFF, tmp_gray8_png, 8, 0)
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assert (
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hashlib.md5(tmp_gray8_png.read_bytes()).hexdigest()
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== "2320216faa5a10bf0f5f04ebce07f8e1"
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== "90b4ed9123f295dda7fde499744dede7"
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)
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yield tmp_gray8_png
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tmp_gray8_png.unlink()
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@ -774,7 +817,7 @@ def tmp_gray16_png(tmp_path_factory, alpha):
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write_png(gray16, str(tmp_gray16_png), 16, 0)
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assert (
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hashlib.md5(tmp_gray16_png.read_bytes()).hexdigest()
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== "706175887af8ca1a33cfd93449f970df"
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== "f76153d2e72fada11d934c32c8168a57"
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)
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yield tmp_gray16_png
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tmp_gray16_png.unlink()
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@ -787,7 +830,7 @@ def tmp_inverse_png(tmp_path_factory, alpha):
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write_png(0xFF - normal16 / 0xFFFF * 0xFF, str(tmp_inverse_png), 8, 2)
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assert (
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hashlib.md5(tmp_inverse_png.read_bytes()).hexdigest()
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== "35a47d6ae6de8c9d0b31aa0cda8648f3"
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== "0a7d57dc09c4d8fd1ad3511b116c7dfa"
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)
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yield tmp_inverse_png
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tmp_inverse_png.unlink()
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@ -813,7 +856,7 @@ def tmp_icc_png(tmp_path_factory, alpha, tmp_icc_profile):
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)
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assert (
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hashlib.md5(tmp_icc_png.read_bytes()).hexdigest()
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== "3058ba4703212fe8c18560e6d1cb61b1"
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== "bf25f673c1617f5f9353b2a043747655"
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)
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yield tmp_icc_png
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tmp_icc_png.unlink()
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@ -826,7 +869,7 @@ def tmp_normal16_png(tmp_path_factory, alpha):
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write_png(normal16, str(tmp_normal16_png), 16, 2)
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assert (
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hashlib.md5(tmp_normal16_png.read_bytes()).hexdigest()
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== "6ad810399058a87d8145d8d9a7734da5"
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== "820dd30a2566775fc64c110e8ac65c7e"
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)
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yield tmp_normal16_png
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tmp_normal16_png.unlink()
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@ -839,7 +882,7 @@ def tmp_normal_png(tmp_path_factory, alpha):
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write_png(normal16 / 0xFFFF * 0xFF, str(tmp_normal_png), 8, 2)
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assert (
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hashlib.md5(tmp_normal_png.read_bytes()).hexdigest()
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== "c8d2e1f116f31ecdeae050524efca7b6"
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== "bc30c705f455991cd04be1c298063002"
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)
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yield tmp_normal_png
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tmp_normal_png.unlink()
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@ -867,7 +910,7 @@ def tmp_palette1_png(tmp_path_factory, alpha):
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)
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assert (
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hashlib.md5(tmp_palette1_png.read_bytes()).hexdigest()
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== "18a3dfca369f976996ef93389ddfad61"
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== "3d065f731540e928fb730b3233e4e8a7"
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)
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yield tmp_palette1_png
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tmp_palette1_png.unlink()
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@ -894,7 +937,7 @@ def tmp_palette2_png(tmp_path_factory, alpha):
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)
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assert (
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hashlib.md5(tmp_palette2_png.read_bytes()).hexdigest()
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== "d38646afa6fa0714be9badef25ff9392"
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== "0b0d4412c28da26163a622d218ee02ca"
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)
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yield tmp_palette2_png
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tmp_palette2_png.unlink()
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@ -937,7 +980,7 @@ def tmp_palette4_png(tmp_path_factory, alpha):
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)
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assert (
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hashlib.md5(tmp_palette4_png.read_bytes()).hexdigest()
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== "e1c59e68a68fca3273b6dc164d526ed7"
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== "163f6d7964b80eefa0dc6a48cb7315dd"
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)
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yield tmp_palette4_png
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tmp_palette4_png.unlink()
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@ -972,7 +1015,7 @@ def tmp_palette8_png(tmp_path_factory, alpha):
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)
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assert (
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hashlib.md5(tmp_palette8_png.read_bytes()).hexdigest()
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== "50bf09eb3571901f0bf642b9a733038c"
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== "8847bb734eba0e2d85e3f97fc2849dd4"
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)
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yield tmp_palette8_png
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tmp_palette8_png.unlink()
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