RN10 GCAM Unedited

Nokia 3.4 gcam unedited

Unedited

Victorrhymez:
Nokia 3.4 gcam unedited

Does the gcam allow for a video recording?

atheistandproud:


Check page 1. First post.

please how do I enter the link I try to copy the link but it's showing me no result was found

Flowboi:
please how do I enter the link I try to copy the link but it's showing me no result was found

Remove spaces on the link as instructed

Flowboi:
please how do I enter the link I try to copy the link but it's showing me no result was found

Did you remove the spaces?

How to calculate binned pixels


Inquisitive Universe:
So this lecture begins with image sensors.

An image sensor is a device at the back of a camera that catches light from objects and then converts it into light energy

An image sensor is made up of pixels. These pixels are the part of the sensor that do the actual light catching.

The size of these pixels are very important to photography because if the pixels cannot catch enough light, the picture would look bad.

The bigger the pixels, the better the pictures.

Bigger pixels will perform better than smaller pixels.

Pixels are measured in micrometers (um).

The standard size used for pixels are around 0.8um. Although they can be as small as 0.6um and as big as 2.4um.

Pixels come in two types
1. They can either be native
Or
2. They can be binned

Native pixels are designed to work alone by themselves. They do not need to be combined with other pixels.

Binned pixels on the other hand are too small to work alone, so they have to be combined with other pixels to form a larger pixel.

Our point of interest today are binned pixels and how to calculate them.

So here is a graphical representation of native pixels and binned pixels (see attached images).

As you can see, binned pixels tend to be smaller than native pixels. Binned pixels are also more on a sensor than native pixels.

Let's assume that we have four 0.8um pixels that are combined together to form one pixel, what do you think would be the size of this super pixel?

If you thought 0.8 × 4= 3.2um.

You would be forgiven. But that answer would be absolutely wrong.

So when four 0.8um pixels are binned together. The effective area shown to light is pixel size x number of pixels ÷ by grid size.

See third attached photo
Pixel size = 0.8
No. Of pixels = 4
Grid size = 2 (2 by 2)

Effective pixel size = pixel size x no of pixels ÷ grid size

Effective pixel size = 0.8 x 4 ÷ 2

Effective pixel size = 3.2 ÷ 2

Effective pixel size = 1.6um

Another good example is the Redmi Note 10 Pro with the Samsung HM2 108mp sensor (see fourth attached photo).

The pixel sizes are 0.7um arranged in a 3 by 3 grid set up. What is the effective pixel size?

The RN10 Pro

Pixel size = 0.7
No. Of pixels = 9
Grid size = 3 (3 by 3)

Formula=

Effective pixel size = pixel size × no. of pixels ÷ grid size

So what is the answer?
A. 1.6um
B. 2.1um
C. 3.4um

Software in Mobile photography

These can be defined as a set of coded instructions, in data form that helps translate human commands to machine language.

Simply put, software is the bridge or interpreter between the human user and the hardware.

Sometimes, when software is smart enough to understand what you need without you sending the commands, it is known as artificial intelligence.

Now when you take pictures, the image sensor captures light and converts it to electrical energy.

This electrical energy gets to the ISP where demosaicing occurs and the light image is transformed from electrical energy into data.

After the image becomes data or a RAW file. It undergoes further post processing and compression to become the final product. A jpeg file.

So all images sensors using CMOS technology are programmed to capture and convert light in the same way.

They then forward to the ISP that does the initial demosaicing. The ISP then uses the software (set of instructions) on the app that captured the image to process it.

In a very very simplified version, software could look like this

0001 reduce exposure
0002 brighten subject
0003 turn sky blue
0004 increase color (saturation)
0005 sharpen image
0006 smoothen edges
0007 beautify
0008 compress and covert to jpeg
0009 finish

This is just an example.

Different companies post process images in different ways.

Some companies like Apple or Samsung like cool colors and make everything look bluish.

As a friend will always say, Apple's iPhones are the kings of blue coloring

Other companies like Transsion go for warmer and more saturated colours.

The two best competing softwares around are arguably Google's Computational photography algorithm a.k.a. GCam and Apple's Deep fusion algorithm.

Personally I believe GCam is miles ahead of Apple's Deep fusion, but iPhone users will surely argue this point.

So that is how software affects Mobile photography.

Lecture:

EV or Exposure value

This refers to the amount of light that is allowed into your image sensor.

Please check images below

Image 3: As you can see, it is currently set to zero.

Exposure compensation is adjusting exposure from the value suggested by the camera to make a picture lighter or darker.

On a bright sunny day, I do not need to set the exposure higher than 0. If anything, I should be reducing it slightly to compensate for the sunlight.

Image 2: at +4.0 as you can see is overexposed. There's too much light in the sensor and the image is washed out and useless.

Image 1: At -4.0, the light is drastically reduced, but the brightness of the sun means that we'll still get a good enough photo.

RN10 GCAM edited in Ad Lightroom

And if it's up then it's stuck
RN10 Stock cam unedited

Nl dey compress quality

BrickDevo:
Nl dey compress quality

Yes they do but them better pass WhatsApp. WhatsApp is the worst.

genius43:


Yes they do but them better pass WhatsApp. WhatsApp is the worst.

You are right, I send images as documents in WhatsApp

Night mode, redmi note 10 Stock cam

ISO lecture

So yesterday we did software and earlier today, exposure value...

I hope we know what those mean now.

Let's start with ISO

ISO refers to how sensitive the image sensor is to light

On most phones, the lowest ISO setting is 100 and the highest is around 3200.

These settings are similar to what you'll find on a proper digital camera.

Also as a side note, if you can have a jotter or pad where you can pen down these things for reference till you master them...

It'll go a long way.

Please see attached images

Image 1: Here the ISO is at the lowest, so my image is dark even though where I'm sitting is quite bright.

This is because I set it to 100.

Image 2: Here I have set it to 3200

The image is now quite bright.

Those of us who have been paying attention from yesterday should realize that this ISO and the EV setting seems to almost do the same thing, but I assure you that they're not.

EV increases the overall exposure of light into the photo.

ISO is the sensitivity of the sensor to light.

As you have seen above, raising my ISO to the highest setting didn't destroy my picture the way EV does.

To make the best use of ISO...

Use high ISO in dark areas or at night to get more light into your pictures

Use low ISO in very bright areas.

You can simply adjust it depending on the light situation. Use your own initiative.

The same advice also goes while using EV setting.

Shutter speed lecture

Shutter speed is the amount of time taken for the sensor to capture a photo. It is also known as exposure time.

Shutter speed ranges from a very fast 1/4000 or four thousandths of a second to up as slow as 30seconds.

If I set the shutter speed to to 1/4000, it can freeze time very quickly (image 1)

Also not that when shooting with fast shutter speeds, enough light is not going to get into the camera. So your image may appear somewhat dark

I'm trying to quickly shoot a photo explaining this concept so just hold on a bit

So as earlier said...

Shooting at fast shutter speeds help to freeze time completely (image 1)

Shooting at slower shutter speeds creates what is known as motion blur (image 2 and 3)

I was waving my hands across the camera face

Also note that if you use a slow shutter speed like 6 seconds and above during daytime, your image will turn white (image 4). This is because too much light is being let into the camera.

Faster shutter speeds are good for capturing sports activities where you can freeze time

It's also good for portraits

Daylight landscape photos

At night however, if you want to get good night shots, then a slower shutter speed is required

The exposure triangle.

The exposure triangle is the relationship between Aperture, Shutter speed and ISO.

These three concepts have already been heavily explained by your's truly. So you should know what they mean by now.

The exposure triangle is a common way of associating the three variables that determine the exposure of a photograph: aperture, shutter speed, and ISO.

The exposure triangle determines how much light enters into your camera and how your pictures look

Too much light will damage your photos, too little will ruin them.

Now on a phone, Aperture is fixed. If your camera is like mine that has f/1.9. Then it'll remain at f/1.9.

That's already a constant.

But you can adjust the ISO, shutter speed and Exposure value (if you have that setting on your phone).

I can only point out the guidelines to you and hopefully give you pointers, but you're still going to have to play with it yourself to master it.

During the day, stick to faster shutter speeds, low to medium ISO value and low to medium exposure values.

Adjust these settings based on the intensity of the light. How bright it is. Use your initiative.

At night, use slower shutter speeds, higher ISO and exposure values. Be careful with exposure values tho. That one can be hard to master.

Use slower shutter speeds too. For this you may need a tripod or a high stool with books to keep it (the phone) stable.

Because if you shoot at slow shutter speed and the phone shakes, you'll get motion blur.

As always, play with these settings

Jot these things down in your own writing till you master them completely. It's for your own good. Not mine.

BrickDevo:
RN10 GCAM Unedited

Link to this gcam

If you've been following the class, then send in your answers so I'll know those that are following and if I should continue posting these lectures here or if I'm waiting my time and data. Thank you.

Question time

1. What part of a phone helps to process photos?

2. Where is the ISP located?

3. Why is an ISP important? (In your own words)

4. How does software impact a photo?

5. What is the exposure triangle?

6. List and explain the three settings that make up the exposure triangle.

7. Name the one setting that is fixed on a smartphone? The one we cannot adjust.

RN10 Stock cam

Ziyech:


Link to this gcam

I used Gcametor from playstore

atheistandproud:
If you've been following the class, then send in your answers so I'll know those that are following and if I should continue posting these lectures here or if I'm waiting my time and data. Thank you.

Question time

1. What part of a phone helps to process photos?

2. Where is the ISP located?

3. Why is an ISP important? (In your own words)

4. How does software impact a photo?

5. What is the exposure triangle?

6. List and explain the three settings that make up the exposure triangle.

7. Name the one setting that is fixed on a smartphone? The one we cannot adjust.

1. The Image Processing Unit or the Image Signal Processor(ISP)
2. In the SoC
3. The ISP is important because it fine tunes the image taken by the camera hardware
4. The software helps to improve the performance of the ISP
5. It is the relationship between Aperture, Exposure value and ISO
6. Aperture is the hole through which light enters the camera.
Exposure value is the amount of light allowed to enter the image sensor.
ISO is the sensitivity of the image sensor to light.
7. Aperture.

ojelvia:
1. The Image Processing Unit or the Image Signal Processor(ISP)
2. In the SoC
3. The ISP is important because it fine tunes the image taken by the camera hardware
4. The software helps to improve the performance of the ISP
5. It is the relationship between Aperture, Exposure value and ISO
6. Aperture is the hole through which light enters the camera.
Exposure value is the amount of light allowed to enter the image sensor.
ISO is the sensitivity of the image sensor to light.
7. Aperture.

Correct

Hi everyone
@atheistandproud thanks for the tutorials, yet to read through but glad you did it, thanks

Here is a pics of an old abandoned honda bike speedometer.

Shot Raw amd edited with snapseed

BrickDevo:
RN10 GCAM Unedited

Nice one. I still haven't been able to setup Gcam on my redmi note 10 pro.

leTrizzle:

Nice one. I still haven't been able to setup Gcam on my redmi note 10 pro.

search for Gcametor in playstore, it will help you install the appropriate GCAM for your phone

Teophilus96:

Does the gcam allow for a video recording?

yes,tho the slow motion records but it's not slow

you'll like this more on an amoled display...

BrickDevo:
search for Gcametor in playstore, it will help you install the appropriate GCAM for your phone

Ok,thanks