Google's Search by Image and Special Effects
Minggu, 07 Juli 2013
0
komentar
It's obvious that Google finds an image if exactly the same file is embedded by a web page or there's a link to that file. Google also finds images if you resize them, crop them or apply various photo effects.
Here's an image from a Wikipedia page, after resizing it and applying the pixelate effect from Picasa. Can Google find it?
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiwNmbpAHk88rF__hzcrAoNjVfskoKHVz9OFZbhNj4nNE4dWwEiFPCPeari0yibNqMbo32hqupH8z7J4NcFJGuqCvZQkZDuTR8zEjfmowgntUx0VK_bP7tktIlaSvIaJPnRxXQn0BSwDyFf/s640/pixelated-photo.jpg)
Google can't find other sizes of the image, but if you look at the "Pages that include matching images" section, you'll find the image.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjD0xVWUj-3gAlEZAG8-mARkpN5lv_lDyURhZnHFSQpIZ0p-COSV1RezepAZgjRlwPU5-XOc0_6T8HvgOz5zK4aWo6vjZi7nnQbx5dHuvATuffjpYxdGxlj_jzFE6fwiqRbFMfoVCESZT1F/s640/google-reverse-image-search.png)
What if you convert the photo to black and white? Will Google's reverse image search engine be able to find it?
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjcn-GVXym3ap1Zv709k_osvcfqGO9x1xsgCjm0fAH1rSyK9Pe7SnI24_qZmY3B1Kp3VII6GmXYBtWbeus4daoFJtd0GAuLTG1rW-nTyWBn0B9fKPq-C0qc8Q5f5mNtkPD2g6uvigiEb-kc/s640/bw-photo.jpg)
You'll get the same pages that include matching images:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjD0xVWUj-3gAlEZAG8-mARkpN5lv_lDyURhZnHFSQpIZ0p-COSV1RezepAZgjRlwPU5-XOc0_6T8HvgOz5zK4aWo6vjZi7nnQbx5dHuvATuffjpYxdGxlj_jzFE6fwiqRbFMfoVCESZT1F/s640/google-reverse-image-search.png)
Let's try something more difficult - apply multiple Picasa effects: soft focus, tint, filtered black-and-white and posterize. There's no way to recognize this image, right?
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgINCQFd0ebzG8sHzYRPOAcxgFf3_0VaqIXeV-JTzjEsF1DSmu85FdIzTOTyKUyJ6usCmX6P2hNngaV-dfxTtvaF5BDpn2n2HqC6iBSoiXCVXgIZNR770DNPiqPpZVYFNr5mb8sa5WgARqZ/s640/multi-effects-photo.jpg)
Wrong.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvFHnonwNMm26-Yb-TJXckGoMFRRpBgbmzFpfPN5m8a744XFu3dDWInz4gnhEAkxuM2312KG0grrOnHtNrmL9DnTFXQkLy6VLpFHaQqf98oE_KYNoqUbShtjDT_3nfIO5coIua37BjYE0w/s640/google-reverse-image-search-2.png)
I used IrfanView to remove EXIF data and compress the image above a lot more. Here's what I got:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgHyjELPkxUTH1NlytSDaqk53qR0_R7vGhC2eP39vnK7LHauAeLZfiJAJEEWVOkIwj-cMG2b-ZOiHU6UDYa_Xm06xINN4LjEZv-Sub4nQEsSYz3efE7vA_hwBGhyLz1R3C39lMM0JJNNhVH/s640/google-reverse-image-search-3.png)
I edited the image in Paint and added some random shapes:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgfrKVA4rcKTBPc7hbPC2q7ioXjInKXW52MThHgjuwvMuOV5dOrEa6PeGXdaMuKRX8pPZX98fz86kZtBNgGilVw_c1F-MIj6j5QW1HdIszuDSRy-w3r_qczaayPpXzNYzj0b0ppQvmc3EuU/s640/multi-effects-photo-compressed-paint.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgHyjELPkxUTH1NlytSDaqk53qR0_R7vGhC2eP39vnK7LHauAeLZfiJAJEEWVOkIwj-cMG2b-ZOiHU6UDYa_Xm06xINN4LjEZv-Sub4nQEsSYz3efE7vA_hwBGhyLz1R3C39lMM0JJNNhVH/s640/google-reverse-image-search-3.png)
Here's the original photo:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEizrX1RuTHWYoeB5JaltjFYbj4aF8wE4FSEZi23PB2qvufwML4Hly0xRD_-3vuNmu3VSlQ0t5Di9itW-qVAX76feybENv8vvulTaPw0mZucw-6p75AVt2jyb_B3j91QzlK4MT_c6yfxUxIw/s640/original-photo.jpg)
To call this impressive is an understatement. It's a resilient algorithm that goes beyond matching pixels, colors, shapes - it understands the structure of the image, its essence.
{ The image from this post ("a red flower in the Philippines") has been licensed as Creative Commons Attribution by bingbing. Thanks, Brian Anderson. }
TERIMA KASIH ATAS KUNJUNGAN SAUDARA
Judul: Google's Search by Image and Special Effects
Ditulis oleh Unknown
Rating Blog 5 dari 5
Semoga artikel ini bermanfaat bagi saudara. Jika ingin mengutip, baik itu sebagian atau keseluruhan dari isi artikel ini harap menyertakan link dofollow ke http://androidpopuler.blogspot.com/2013/07/google-search-by-image-and-special.html. Terima kasih sudah singgah membaca artikel ini.Ditulis oleh Unknown
Rating Blog 5 dari 5
0 komentar:
Posting Komentar