To investigate on the statistics of an image, I want to find out how to get all
2.) maxima and
3.) inflection points
for the histogram of a specific image. I know how to extract the frequency for the pixel values in the image and how to plot the histogram as well as the function itself, but that is all. Thanks a lot in advance for your help!
see URL:Finding inflection points in R from smoothed data
# get the frequenz, how often specific values occur and plot the head image_freq <- freq(image) head(image, n = 5) value count [1,] -56 1 [2,] -55 4 [3,] -53 3 [4,] -52 5 [5,] -51 4 # get variables for the x and y values and plot the graph # FOR THIS GRAPH I WANT TO GET ALL MINIMA, MAXIMA AND INFLECTION POINTS x_value <- image_freq[, 1] y_value <- image_freq[, 2] plot(x_value, y_value, type = 'l')