title: image enhancement - cleaning given image from writing
body: <p><img src="https://i.stack.imgur.com/gOi0I.png" alt="enter image description here"></p>
  
  <p>i need to clean this picture delete the writing "clean me" and make it bright.<br><br>
  as a part of my homework in image processing course  i may use matlab functions ginput, to find specific points in the image (of course in the script you should hard code the coordinates you need).</p>
  
  <p>You may use conv2, fft2, ifft2, fftshift etc.</p>
  
  <p>You may also use median, mean, max, min, sort, etc.</p>
  
  <p>my basic  idea was to use the white and black values from the middle of the picture and insert them into the other parts of the black and white strips. however gives a very synthetic look to the picture.</p>
  
  <p>can you please give me a direction what to do ? a median filter will not give good results.</p>