Intelligent Recognition of Time Stamp Characters in Solar Scanned Images from Film

Figure 6

Extract characters from Figure 3: (a) position the time stamp and rotate, (b) after top hat operation and binarization, (c) black and white inversion of binary image, (d) extract related connectivity domain, (e) extract character regions, and (f) characters extraction result.

(a)

(b)

(c)

(d)

(e)

(f)