diff --git a/.DS_Store b/.DS_Store
deleted file mode 100644
index bdf91db..0000000
Binary files a/.DS_Store and /dev/null differ
diff --git a/.gitignore b/.gitignore
index 1e1e42f..dd0b59f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -163,4 +163,32 @@ cython_debug/
# be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
# and can be added to the global gitignore or merged into this file. For a more nuclear
# option (not recommended) you can uncomment the following to ignore the entire idea folder.
-#.idea/
\ No newline at end of file
+#.idea/
+
+
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
\ No newline at end of file
diff --git a/01-0001-cropped-transformed-ratio.png b/01-0001-cropped-transformed-ratio.png
index ab2c38f..e8a6214 100644
Binary files a/01-0001-cropped-transformed-ratio.png and b/01-0001-cropped-transformed-ratio.png differ
diff --git a/display_key.html b/display_key.html
new file mode 100644
index 0000000..7d29f47
--- /dev/null
+++ b/display_key.html
@@ -0,0 +1,28 @@
+
+
+ | Color |
+ Temperature |
+
+
+ |
+ 700°C |
+
+
+ |
+ 800°C |
+
+
+ |
+ 900°C |
+
+
+ |
+ 1000°C |
+
+
+
+
diff --git a/ratio_pyrometry.py b/ratio_pyrometry.py
index 9ec27a3..72369be 100644
--- a/ratio_pyrometry.py
+++ b/ratio_pyrometry.py
@@ -2,25 +2,35 @@ import math
import cv2 as cv
import numpy as np
from numba import jit
+import json
# camera settings
file = '01-0001.png'
I_Darkcurrent = 150.5
-exposure_time = 0.5
+exposure_time = 0.500
f_stop = 2.4
ISO = 64 # basically brightness
-# runtime config
-MAX_GR_RATIO = 2000
-MIN_GR_RATIO = None
+# pyrometry config
+MAX_GR_RATIO = 1200
+MIN_GR_RATIO = 0
+# original range from paper
+# MAX_GR_RATIO = 1200
+# MIN_GR_RATIO = 600
+# Cropping config
x1 = 420
x2 = 1200
y1 = 400
y2 = -1
+# post-processing
+smoothing_radius = 2
+
@jit(nopython=True)
def rg_ratio_normalize(imgarr):
+ tmin = MAX_GR_RATIO
+ tmax = 0
imgnew = imgarr
for i in range(len(imgarr)):
for j in range(len(imgarr[i])):
@@ -29,21 +39,36 @@ def rg_ratio_normalize(imgarr):
g_norm = normalization_func(px[1])
# apply camera calibration func
- ratio = pyrometry_calibration_formula(g_norm, r_norm)
+ temp_C = pyrometry_calibration_formula(g_norm, r_norm)
- # remove edge cases
- if MAX_GR_RATIO != None and ratio > MAX_GR_RATIO or MIN_GR_RATIO != None and ratio < MIN_GR_RATIO:
- ratio = 0
+ # remove pixels outside calibration range
+ if MAX_GR_RATIO != None and temp_C > MAX_GR_RATIO or MIN_GR_RATIO != None and temp_C < MIN_GR_RATIO:
+ temp_C = 0
+
+ # update min & max
+ if temp_C < tmin and temp_C >= 0:
+ tmin = temp_C
+ if temp_C > tmax:
+ tmax = temp_C
+
+ imgnew[i][j] = [temp_C, temp_C, temp_C]
+ return imgnew, tmin, tmax
- imgnew[i][j] = [ratio, ratio, ratio]
- return imgnew
@jit(nopython=True)
def normalization_func(i):
+ """
+ does something to the pixels that i don't understand lol
+ """
return (i - I_Darkcurrent) * (f_stop ** 2) / (ISO * exposure_time)
+
@jit(nopython=True)
def pyrometry_calibration_formula(i_ng, i_nr):
+ """
+ Given the green-red ratio, calculates an approximate temperature
+ in Celsius.
+ """
return 362.73 * math.log10(
(i_ng/i_nr) ** 3
) + 2186.7 * math.log10(
@@ -52,6 +77,7 @@ def pyrometry_calibration_formula(i_ng, i_nr):
(i_ng / i_nr) ** 3
) + 3753.5
+
# read image & crop
file_name = file.split(".")[0]
file_ext = file.split(".")[1]
@@ -61,29 +87,17 @@ cv.imwrite(f'{file_name}-cropped.{file_ext}', img)
# img = cv.imread('ember_test.png')
-img = rg_ratio_normalize(img)
+img, tmin, tmax = rg_ratio_normalize(img)
-# apply smoothing conv kernel
-kernel = np.array([
- [1/2, 1/2],
- [1/2, 1/2],
-])
+print(f"min: {tmin}°C")
+print(f"max: {tmax}°C")
-# kernel = np.array([
-# [1/3, 1/3, 1/3],
-# [1/3, 1/3, 1/3],
-# [1/3, 1/3, 1/3],
-# ])
-
-# kernel = np.array([
-# [1/4, 1/4, 1/4, 1/4],
-# [1/4, 1/4, 1/4, 1/4],
-# [1/4, 1/4, 1/4, 1/4],
-# [1/4, 1/4, 1/4, 1/4],
-# ])
-
-# Scaling adjustment factor
-kernel *= 3/5
+# build & apply smoothing conv kernel
+k = []
+for i in range(smoothing_radius):
+ k.append([1/(smoothing_radius**2) for i in range(smoothing_radius)])
+ # for j in range(smoothing_radius):
+kernel = np.array(k)
img = cv.filter2D(src=img, ddepth=-1, kernel=kernel)
diff --git a/ratio_pyrometry_legend.py b/ratio_pyrometry_legend.py
new file mode 100644
index 0000000..908621c
--- /dev/null
+++ b/ratio_pyrometry_legend.py
@@ -0,0 +1,7 @@
+import ratio_pyrometry
+
+@jit(nopython=True)
+def normalization_func_customizable(i, I_Darkcurrent, ISO, f_stop, exposure_time):
+ return (i - I_Darkcurrent) * (f_stop ** 2) / (ISO * exposure_time)
+
+