Author Topic: Request: sample photos with rear camera  (Read 14059 times)

galodoido

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Request: sample photos with rear camera
« Reply #15 on: June 11, 2018, 12:21:06 pm »
Quote from: Jos
Quote from: galodoido
Quote from: shinkamui
Quote from: Kisuke-CZE
Wow, seems nice. Photos are better than I expected.

Any photos how Gemini looks with camera addon installed? I did not bought camera addon because I did not want to ruin clean design of Gemini. But this camera seems to be good enough to take "documentation" photos (just inserting photos to some project documentation). Now is seems interesting.


Making me pull out the iphone or note...   Ill take a couple shots and post this afternoon.

Camera module add-on is no longer for sale at indiegogo.com ( I did not see more  ).
Maybe out of stock  or the  module  will be upgraded.

They seem to sell the camera here: https://pdaplaza.ca/products/external-camer...-for-gemini-pda

Ok. Thank you so much !

galodoido

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Request: sample photos with rear camera
« Reply #16 on: June 11, 2018, 12:21:50 pm »
Quote from: drand
Also it is for sale at the planet computers official online shop
https://store.planetcom.co.uk/collections/a...l-camera-add-on

Ok. Thank you so much !

Eldkatten

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Request: sample photos with rear camera
« Reply #17 on: June 12, 2018, 03:16:24 am »
Thank you, shinkamui, for the sample pictures.

But no, my five year old tablet takes better pictures, I'm not buying it.

Quote from: shinkamui
Don't plan on using it to keep long term memories of your kids.    Its passable as a document scanner, but only if you have a steady hand.

Indoors, under LED lights over kitchen island.  

Outdoors, sunny day, excellent lighting conditions.

joepirello

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Request: sample photos with rear camera
« Reply #18 on: June 13, 2018, 03:06:07 am »
Wonder if a higher quality camera module could be "hacked" to work.

Varti

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Request: sample photos with rear camera
« Reply #19 on: June 13, 2018, 05:38:02 am »
I have printed a test page I found on some webpage, containing text of different sizes, and made a photo of it with the external camera, I hope it will be useful to get an idea of the camera’s quality. I made the photo indoors, in a room with neon lightning.

 [ Invalid Attachment ]

Note that the external camera is necessary if you plan to use the Gemini as your primary phone and your home banking app requires to scan a QR (or similar) code in order to get access to your account. I have installed the app for my bank account on the Gemini and it works as expected.

Varti
Planet Gemini PDA WiFi/LTE with Mediatek x27
SL-C1000 running Arch Linux ARM May2017, K30225 Wi-Fi CF Card, 64GB SDXC card
and many other Zauruses!

bzd

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Request: sample photos with rear camera
« Reply #20 on: June 13, 2018, 10:27:26 am »
Quote from: Varti
I have printed a test page I found on some webpage, containing text of different sizes, and made a photo of it with the external camera, I hope it will be useful to get an idea of the camera’s quality. I made the photo indoors, in a room with neon lightning.

 [ Invalid Attachment ]

Note that the external camera is necessary if you plan to use the Gemini as your primary phone and your home banking app requires to scan a QR (or similar) code in order to get access to your account. I have installed the app for my bank account on the Gemini and it works as expected.

Varti

Thanks Varti, that's perfect for judging whether the camera will do or not for note-taking purposes. Unfortunately I am now thinking it will not (the 12pt is too blurry, you certainly couldn't "threshold" it into clarity, and 10pt wouldn't be readable/guessable).  I'll have to work out what else to do about a camera (possibly... a camera!).

Are there any bluetooth connected small cameras that could connect a bit like the idea of having a small thin credit card-sized bluetooth connected handset?

Ben

1668880

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Request: sample photos with rear camera
« Reply #21 on: June 13, 2018, 12:53:32 pm »
Can you try again using the CamScanner App https://play.google.com/store/apps/details?...er&hl=en_US This app can fix issues with the text looking blurry and adjust lighting, it also will allow you to crop the picture so you only get the document you want. That is if the app will work with the camera. Thanks for posting the pictures still waiting to receive mine. How is the case for the camera add on?
« Last Edit: June 13, 2018, 12:55:41 pm by 1668880 »

rubus-3.142

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Request: sample photos with rear camera
« Reply #22 on: June 16, 2018, 03:10:29 pm »
Quote
Are there any bluetooth connected small cameras that could connect a bit like the idea of having a small thin credit card-sized bluetooth connected handset?

I have never been taken with any camera phone, lots of Pixels but ultimately all compressed into a small sensor area with a small lens in front of it.  Compared to a real camera this ultimately means less quality per £/$/EUR spent on it.    

For work I carry a small compact Cannon Ixus 28-74mm zoom with image stabilisation and high ISO sensitivity (good in low light with no flash)  It's about 8 years old but takes better images than my 2018 Samsung J5.

The Ixus takes SD cards so I use A Toshiba FlashAir CF card.  You can quickly move photos off the camera onto the Phone or indeed anything else with WiFi - the card works as a wireless server so makes own local network the Gemini/Phone connects to,  there's an Android App but as it used WebDAV can work with most devices.

Once on the Gemini/Phone you email away etc as normal.  

Most modern cameras from the traditional & "new"" camera manufacturers (Cannon, Olmpus, Nikon, Panasonic, Sony etc etc.)  apart from the very cheap ones will have WiFi built in - although might need a propitiatory app to make it work (the Sony App is particularly irritating...)
« Last Edit: June 16, 2018, 03:19:36 pm by rubus-3.142 »

tuk0z

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Request: sample photos with rear camera
« Reply #23 on: June 18, 2018, 04:28:08 am »
thanx for your input guys @shinkamui, @ali1234 and @Varti much appreciated
Man why did I count on the external camera add-on? :-/

shinkamui

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Request: sample photos with rear camera
« Reply #24 on: June 18, 2018, 02:02:45 pm »
Quote from: bzd
Quote from: Varti
I have printed a test page I found on some webpage, containing text of different sizes, and made a photo of it with the external camera, I hope it will be useful to get an idea of the camera’s quality. I made the photo indoors, in a room with neon lightning.

 [ Invalid Attachment ]

Note that the external camera is necessary if you plan to use the Gemini as your primary phone and your home banking app requires to scan a QR (or similar) code in order to get access to your account. I have installed the app for my bank account on the Gemini and it works as expected.

Varti

Thanks Varti, that's perfect for judging whether the camera will do or not for note-taking purposes. Unfortunately I am now thinking it will not (the 12pt is too blurry, you certainly couldn't "threshold" it into clarity, and 10pt wouldn't be readable/guessable).  I'll have to work out what else to do about a camera (possibly... a camera!).

Are there any bluetooth connected small cameras that could connect a bit like the idea of having a small thin credit card-sized bluetooth connected handset?

Ben

sony QX10 and QX100 are two possible wifi direct/nfc connected options.  For the price though...  I considered this as well during the crowdfunding campaign, but quickly realized the clips probably wont work with this form factor either.

Daniel W

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Request: sample photos with rear camera
« Reply #25 on: July 23, 2018, 04:51:32 pm »
Quote from: 1668880
Can you try again using the CamScanner App https://play.google.com/store/apps/details?...er&hl=en_US This app can fix issues with the text looking blurry and adjust lighting, it also will allow you to crop the picture so you only get the document you want.
I decided to try, so I printed the same test page. It was shot in daylight near a window, with a 20W LED bulb celing light, not directly overhead. The first thing I noticed is that the landscape nature of the Gemini seems to confuse the CamScanner preview window

As you can see, the preview is rotated 90 degrees (and then stretched). This made positioning the document quite fiddly. Other than that, the scanning, straightening and enhancement worked as advertised, giving me this:

The remaining blur seems to come from either camera noise or attempts to remove it, and beyond improving contrast, there really isn't all that much the enhancement can do.

For reference, I tried again, this time just using the tools available in the Gemini stock camera app, and got this:

Since there is no perspective correction available there, this document could only be cropped, not deskewed, which, in turn, should preserve what little sharpness there may be, as there is no resampling involved. I think the result looks a bit worse but is a bit easier to read. The process is a lot more manual though, having to set sliders for whites, highlights, shadows, black etc. Also, the resulting JPEG file is about three times as large.

Finally, again for reference, I tried using my mobile go-to photo editor, simply called Photo Editor, by Dev.Macgyver. It has perspecive correction, which I used, and many different tools for contrast, but to keep the test realistic, that is, simple enough that I might actually stand to do it whenever I need to "scan" something, I chose the Effect>Black&White High Contrast, and got this:
 [ Invalid Attachment ]
Since this is a general purpose photo editor, I am free to chose how heavily to compress the JPEG file. Because the camera is so noisy to begin with, I could set the quality at 50% and get a file size about that of CamScanner. I'd still say, this is the worst of the three, probably because this is the most "manual" tool, and I limited myself to what I could do in less than a minute.

bzd

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Request: sample photos with rear camera
« Reply #26 on: August 06, 2018, 06:05:30 am »
Hi Daniel, Thanks for those processed photos: very very useful. I use Camscanner a bit and find it really useful so good to see that example.
All of those examples look like the 12pt is actually very legible. I suspect 10pt would be too. Any chance of a photo of a book or magazine page of text in camscanner too (sorry being a bit demanding!)?
I'm now thinking the camera add-on will be of use...
Cheers,
Ben