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The problem you are looking for called "Page layout detection and character segmentation" , the generic steps go as follow:

1-Detect page zones such as , Text Headers , Text paragraph , Graphics and pictures , tables , .... 2-For Text zones (Header , table cell , paragraph) do the following.

• Split into lines
• split line into words
• split word into characters

In your case you only have one paragraph -you can split paragraph by using horizontal histogram and cut line on local minimum , or you can use contours by adding regions which share vertically some height threshold into one line.

• -sort the lines from top to bottom.
• -for every line sort regions from left to right.
• -In one line if there is horizontal overlap , merge the two regions in one bigger region (this will solve i,j problems)
• -Then you can split the line into characters by taking every region as one character or ligature (rr,ff,vv).

finally if you need ready made solution , Tesseract can do all previous tasks plus the recognition

The problem you are looking for called "Page layout detection and character segmentation" , the generic steps go as follow: