diff --git a/.gitignore b/.gitignore
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+++ b/.gitignore
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+venv/
diff --git a/README.md b/README.md
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+++ b/README.md
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+TongueColorCheckerAnalysis
+===============
+舌診カラーチェッカーの評価
+
+### 開発環境
+- Python 3.12.0
+```
+$ python -m venv venv
+$ venv/Scripts/activate
+$ pip install -r requirements.txt 
+```
diff --git a/Spectrum.xlsx b/Spectrum.xlsx
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index 0000000..80fb006
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+++ b/Spectrum.xlsx
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diff --git "a/TCC\350\250\210\346\270\254\345\206\231\347\234\237.pptx" "b/TCC\350\250\210\346\270\254\345\206\231\347\234\237.pptx"
new file mode 100644
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+++ "b/TCC\350\250\210\346\270\254\345\206\231\347\234\237.pptx"
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diff --git a/calc_xyz.py b/calc_xyz.py
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+++ b/calc_xyz.py
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+import openpyxl
+import numpy as np
+import matplotlib.pyplot as plt
+
+
+def excel_row(filename, range):
+    wb = openpyxl.load_workbook(filename)
+    sheet = wb[wb.sheetnames[0]]
+    return [cell.value for cell in sheet[range][0]]
+
+
+led_sp = np.float32(excel_row("Spectrum.xlsx", "B2:AF2"))
+# print("led=", led_sp)
+cmf_x_sp = np.float32(excel_row("Spectrum.xlsx", "B3:AF3"))
+cmf_y_sp = np.float32(excel_row("Spectrum.xlsx", "B4:AF4"))
+cmf_z_sp = np.float32(excel_row("Spectrum.xlsx", "B5:AF5"))
+sum_y = led_sp.dot(cmf_y_sp)
+k = 100.0 / sum_y
+# tri_x = (led_sp).dot(cmf_x_sp) * k
+# tri_y = (led_sp).dot(cmf_y_sp) * k
+# tri_z = (led_sp).dot(cmf_z_sp) * k
+# print(tri_x, tri_y, tri_z)
+
+for patch_no in range(1, 25):
+    row = patch_no + 1
+    tcc_sp = np.float32(excel_row("handy_tcc.xlsx", f"F{row}:AJ{row}")) / 100
+    # print(f"tcc{patch_no}=", tcc_sp)
+
+    tri_x = (led_sp * tcc_sp).dot(cmf_x_sp) * k
+    tri_y = (led_sp * tcc_sp).dot(cmf_y_sp) * k
+    tri_z = (led_sp * tcc_sp).dot(cmf_z_sp) * k
+    print(patch_no, tri_x, tri_y, tri_z, sep="\t")
+
+# wavelen = np.linspace(400, 700, 31)
+# plt.plot(wavelen, led_sp, c="k")
+# plt.plot(wavelen, tcc_sp, c="r")
+# plt.show()
diff --git a/handy_tcc.xlsx b/handy_tcc.xlsx
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+++ b/handy_tcc.xlsx
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diff --git a/requirements.txt b/requirements.txt
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+++ b/requirements.txt
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+matplotlib
+numpy
+openpyxl
+pillow
diff --git a/sugawara_tcc_mat8485.xlsx b/sugawara_tcc_mat8485.xlsx
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+++ b/sugawara_tcc_mat8485.xlsx
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diff --git a/takano_tcc.xlsx b/takano_tcc.xlsx
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+++ b/takano_tcc.xlsx
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diff --git a/tongue_spectrum.xlsx b/tongue_spectrum.xlsx
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index 0000000..02c4866
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+++ b/tongue_spectrum.xlsx
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