charlie880624
7716a0060f
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- Add golf1/2/4/7/8 dataset classes for semantic segmentation - Add kneron-specific configs (meconfig series, kn_stdc1_golf4class) - Organize scripts into tools/check/ and tools/kneron/ - Add kneron_preprocessing module - Update README with quick-start guide - Update .gitignore to exclude data dirs, onnx, nef outputs Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
42 lines
895 B
Python
42 lines
895 B
Python
import numpy as np
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from PIL import Image
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def twos_complement(value):
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value = int(value)
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# msb = (value & 0x8000) * (1/np.power(2, 15))
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msb = (value & 0x8000) >> 15
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if msb == 1:
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if (((~value) & 0xFFFF) + 1) >= 0xFFFF:
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result = ((~value) & 0xFFFF)
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else:
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result = (((~value) & 0xFFFF) + 1)
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result = result * (-1)
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else:
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result = value
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return result
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def twos_complement_pix(value):
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h, _ = value.shape
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for i in range(h):
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value[i, 0] = twos_complement(value[i, 0])
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return value
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def clip(value, mini, maxi):
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if value < mini:
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result = mini
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elif value > maxi:
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result = maxi
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else:
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result = value
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return result
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def clip_pix(value, mini, maxi):
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h, _ = value.shape
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for i in range(h):
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value[i, 0] = clip(value[i, 0], mini, maxi)
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return value |