algorithm - How to locate elements in image? -

algorithm - How to locate elements in image? -

this question has reply here:

how extract text image using opencv or ocr tesseract? [duplicate] 1 reply

i cannot find algorithms should utilize find objects in image. there many solutions recognition of objects. if have white scanned paper , have random letters on it? how locate them? later need recognize every letter how can find them?

could write me names of algorithms or links?

or maybe there helpful solution in opencv?

if interested in ocr, check out google's tesseract. project open-source , according google " accurate open source ocr engine available". more details , related algorithms used in tesseract, refer here.

how tesseract on scanned pages?

i used tesseract extract text scanned image( using english language language training set provided) -

this output looked -

2213 (rout wan w. suns)

here dwell rogether still 2 men of note never lived , can never die: how near seem, ye: how remote tm age berm me world went awry. still game’: afoot rhose ears avtuned grab distant view-halloo: england england yer, our fenrs— lhlngs heart ézlin/ex true. yellowish fog swirls pm window-pane

a: night descends upon lhls fabled street:

a lonely hansom splashes through rain,

the ghostly gas lamps ran @ (wenly feet.

here, though world explode, these 2 survive, , 18 ninety-five.

maw. h‘ .9“ vmczwr snuuus-rr

algorithm opencv image-processing ocr