For my class I need to graph the frequency of occurrence of each gray level for the image Flower.jpg that size [512, 512]. We cannot use the built in histogram function in MATlab an I am having trouble making a function that calculates the occurrences and plots on the histogram. Here is the code I attempted to use please help me fix it so the code will run and properly answer the question

1 2 % read in the image function h Questioni (lowekajpanh; I=imread('Flower.jpg'); figure; imshow(I); 3 - 4 - 5 6 7 - 8 % count the occurances of each gray level in the image h = zeros (512,1); for l=0:512 h(1+1)=sum ( sum(I 1));| end figure; bar(h); 9 10 11 12 13 14 15 16 % plot the occurances of each gray level on a histogram colormap(gray) imgagesc(h) z LULUI 24 Command Window CITOLI TILE. vues LIUI11.III LIIC Invalid expression. Check for missing multiplication operator, missing or unbalanced delimiters, or other syntax error. To construct matrices, use brackets instead of parentheses. >> Question1 fx Error: File: Question1.m Line: 2 Column: 24