OCR (Optical Character Recognition) ek AI-based technology hai jo images mein visible text ko machine-readable text mein convert karti hai. Hamar tool Tesseract.js use karta hai — Google ka open-source OCR engine.

Hamar tool kaise kaam karta hai:

• Step 1 — Image Load: Aap image upload karte hain — browser mein locally load hoti hai, koi upload nahi
• Step 2 — Preprocessing: Tesseract image ko internally process karta hai — contrast enhance karta hai, noise remove karta hai
• Step 3 — Character Recognition: AI model image ke har character ko analyze karta hai aur text determine karta hai — line by line, word by word
• Step 4 — Output: Recognized text output box mein aata hai — confidence score ke saath

Accuracy factors:

• Image resolution (higher = better)
• Text contrast (dark on light = best)
• Font clarity (printed fonts > handwritten)
• Image alignment (straight text = better)
• Language selection (correct language = more accurate)

OCR accuracy bahut factors par depend karti hai. Yahan practical tips hain:

📸 Image Quality:

• Resolution: Minimum 300 DPI use karo scan ke liye. Mobile photos mein document ko close-up mein capture karo
• Focus: Image sharp honi chahiye — blurry images mein accuracy drastically kam ho jaati hai
• Lighting: Even lighting use karo — shadows avoid karo especially scanned documents mein

🎨 Contrast & Color:

• Dark text on white/light background best results deta hai
• Colorful backgrounds accuracy reduce karte hain
• Image editing tools se contrast enhance karo before OCR

📐 Alignment:

• Image straight honi chahiye — tilted ya rotated text accuracy reduce karta hai
• Photo lene se pehle document flat rakhein aur straight angle se shoot karein

🌐 Language:

• Correct language select karna crucial hai — wrong language selection bahut galat results deta hai
• Hindi text ke liye “Hindi” ya “EN+HI” mode select karo
• Mixed language content ke liye “EN+HI” combined mode best hai

✂️ Crop karo: Text area ko crop karke zyada focused image use karo — extra blank space ya images remove karo before OCR

Hindi (Devanagari script) OCR ke liye hamar tool specifically configured hai:

Step by step:

• Hindi document ya image upload karo
• Language buttons mein “🇮🇳 Hindi” select karo
• “Extract Text” button click karo
• Tesseract Hindi language pack download karta hai (first time only — kuch seconds)
• Devanagari text extract ho jaata hai

Hindi + English mixed content ke liye:
“EN+HI” button select karo — yeh dono languages simultaneously detect karta hai. Useful for bilingual documents, forms, newspapers.

Hindi OCR accuracy tips:

• Printed Hindi (typewritten/digital) handwritten se zyada accurate extract hoti hai
• Standard fonts jaise Mangal, Kruti Dev, Unicode Hindi best results dete hain
• High resolution image zaroori hai — Devanagari characters complex hote hain, blur mein accuracy kam hoti hai
• Output text editable hai — manually correct kar sakte hain koi bhi mistakes

Hamar Hindi Translator tool: Extracted Hindi text ko English mein translate karne ke liye hamar Hindi Translator tool use karo.

Image to Text OCR tool bahut versatile hai — yahan most popular use cases hain:

📱 Phone Photography:

• Whiteboard ya blackboard photo se notes extract karna
• Business card photo se contact info copy karna
• Menu card photo se items list extract karna
• Road signs, banners, posters ka text copy karna

📄 Document Digitization:

• Scanned old documents ko editable text mein convert karna
• Printed forms ko digital fill karne ke liye text extract karna
• Physical books ya articles ko digital notes mein convert karna
• Old receipts aur invoices ko digital record mein convert karna

💻 Screenshots:

• Screenshot se error messages copy karna (Stack Overflow search ke liye)
• PDF viewer ya locked content se text extract karna
• Social media posts ya tweets se quoted text copy karna
• Online presentations se text notes extract karna

🎓 Academic:

• Textbook photos se content extract karke notes banana
• Research papers ke important sections digitize karna
• Old question papers scan karke digital format mein convert karna

OCR confidence score batata hai ki engine kitna sure hai extracted text ke baare mein:

🟢 High Confidence (80%+):

• OCR engine confident hai ki text correctly extracted hua hai
• Clear, high-resolution images se milta hai
• Result mostly accurate hoga — minor errors possible
• Direct use ke liye safe

🟡 Medium Confidence (50–80%):

• Some uncertainty hai — moderate quality image
• Most text likely correct hai lekin review karna chahiye
• Use karne se pehle scan through karo

🔴 Low Confidence (Below 50%):

• OCR struggle kar raha hai — image quality issue ya wrong language
• Text kaafi errors contain kar sakta hai
• Carefully proofread karo ya better quality image use karo

Low confidence improve karne ke liye:

• Higher resolution image use karo
• Correct language select karo
• Image crop karo — unnecessary areas remove karo
• Contrast increase karo image editing tool se
• Straight image use karo — rotation avoid karo

Output box mein text editable hai — low confidence sections ko manually fix karo before using.