Blue2Digital

Genuinely designed for the common people

Compare two images by measuring the similarity

Compute the normalized cross-correlation of two images online

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I accept the Terms Of Use

* The areas colored red are more prominent where the images are similar most.

* Feel free to submit other two images for comparison.
* This app is free to use when the two files are compared for the first time. Each subsequent use of the app costs 0.5 USD >> PURCHASE NOW.

SELECT IMAGE 1 SELECT IMAGE 2

Also try the free online tool for finding a particular image in another image by identifying the matching area.

Our software utilizes an algorithm that calculates cross-correlation in the spatial and frequency domain rather than comparing images directly. This algorithm is considered a basic one and it does not help comparing images being too noisy or rotated relative to each other. In most of the cases it, however, shows excellent results.

Once the calculation has been completed, the uploaded files will be removed from our servers.

This web tool is free to use when the two files are compared for the first time. Each subsequent use of the app costs 0.5 USD >> PURCHASE NOW.

No registration is required. You just have to accept the terms of service set out above.

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ADD A DIGITAL SIGNATURE TO A FILE

// A perfect way to ensure the integrity of the message being sent or the file being shared and to ensure the authenticity of the sender of the message //

.:: Create a digital signature, digitally sign a file, verify a digital signature, or generate an RSA key pair with a digital certificate

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DIGITAL FILE WATERMARKING AND COPYRIGHT PROTECTION TOOL

// Get an unobtrusive, invisible and noiseless digital watermark embedded in your file as its globally unique identifier and copyright protection tool //

.:: Add watermark to image

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ADD AN ELECTRONIC SIGNATURE TO A FILE

// Draw a handwritten e-signature online with a transparent background on your phone, tablet or computer //

.:: Create an electronic signature online

.:: Add an electronic signature to an image

.:: Add an electronic signature to a PDF document

YT REMOTE

// Manage YouTube videos on your Smart TV or computer using your smartphone or tablet //

.:: Get your own YT Remote video player on your mobile

QR Code Encoder/Decoder

// Storing data within a barcode image is an easy and secure way to provide a potential customer with accurate information about a digital product //

.:: Create/encode/generate QR code with a digital watermark embedded inside

VIDEO ENCODING

// Submit a video and convert it to grayscale or black and white video, create an animated GIF image online, trim a video file, extract audio from video, extract video only, extract images, add watermark to video, or create a thumbnail //

.:: Submit a video for conversion or edit

FIND THE SIMILARITY BETWEEN STRINGS, IMAGES, AUDIO AND VIDEO FILES

// Compare two files online by measuring the similarity and computing the normalized cross-correlation //

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PDF READER

// Read a PDF file from any desktop or mobile device, from anywhere and at any time //

.:: Free online PDF viewer