Serene Life

by garik

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12
votes
3answers
2k views

How can I open a very, very large image to downsize it?

I have an image with a 18984x28591px resolution but I can't open it with Paint or with Pixlr Editor to reduce its size. How can I convert or open this large image on my laptop?
9
votes
3answers
1k views

How to resize RAW image files without converting to JPEG?

How can I resize RAW image files (.NEF) from 12 Megapixels to about 5 megapixels without converting it to JPG?
0
votes
0answers
46 views

A tool to resize photos based on 'quality' (bluriness, graininess, etc) of original image

As part of my organisation workflow I like to size down images where the quality of the photo is not making the most of the resolution (due to camera shake, low light graininess, or whatever). Is ...
1
vote
1answer
76 views

Photography Post Processing Using Linux : Open Source : Slideshows to Music [closed]

I am migrating from Windows to Linux and have a question about post processing software on Linux: I already use GIMP / G'MIC and have a couple of questions regarding rather specialist bits of post ...
1
vote
3answers
115 views

Do I have to resample images when resizing them (smaller)?

Do I have to resample images when I'm resizing them? I want to make them smaller.
4
votes
3answers
120 views

Superimposing photos and thermographic images

I have two cameras: one is a "visible" camera and the other one is a thermographic camera, which, as many of you may know, it is a camera that captures infrared radiation instead of visible light. I ...
0
votes
1answer
100 views

What is the best way to resize a high-DPI image for use on the web and in mobile apps? [duplicate]

I've been given an image (I'm guessing straight from a camera) and it's currently at at 240 pixels per inch. It's been a while since I did much Photoshop; I have three questions for two requirements: ...
0
votes
3answers
107 views

Increase photo resolution by taking a high-res photo of the photo?

I want to make a big tile mural (6 ft. x 3 ft.) from a photo that is 2' x 1.5', 300 dpi. Can I get a higher resolution in the end result if I take a picture of the stock photo with my Canon DSLR, ...
3
votes
2answers
113 views

Is creative sharpening before resizing a mistake (if you're following the sharpen after resizing methodology)?

I've read about 'creative sharpening', a step in between raw sharpening and output sharpening, but it strikes me that this goes against the principles behind sharpening after you resize. If you ...
3
votes
1answer
411 views

How does the resize option 'bicubic auto' in CS6 incrementally upscale images?

It's been demonstrated that upscaling incrementally improves image quality, Empirical Study: Extreme digital upscaling, and that thread also shows that choosing 105% increments versus 110% increments ...
1
vote
3answers
4k views

If image I change an image from 72dpi to 300dpi, can I scale it up size without losing quality? [duplicate]

Title says it all. When I change my image from 72dpi to 300dpi, the image gets smaller. Can I scale the image back up and print it out at 300dpi without sacrificing quality?
4
votes
2answers
433 views

Why does text in a photograph become blurry when I downscale the image?

Recently I created a website where I sell books. I captured some images with a Canon EOS 550, and then I resized them according to the website space, but when I resized the original picture, then the ...
0
votes
4answers
3k views

How to scale up a photo? [duplicate]

Possible Duplicate: How can I upscale a low-res image to make it appear higher-res? I need to scale up a small photo to the 3x of the original size. What method is common to become the best ...
4
votes
3answers
492 views

How can I downsample high-resolution shots with Lightroom?

I have many casual travel shots taken with a high resolution camera. I want to take the shots with high resolution because I'm not sure on beforehand if I want to print big or crop. After reviewing ...
-1
votes
2answers
273 views

How to reduce the image resolution to increase ppi?

Having an photo of 4000x3000 resolution with 240ppi. Is it possible get a resolution of 400x300 resolution but with higher ppi?If possible how to do that?
1
vote
3answers
1k views

Can I increase the resolution of a six-megapixel photo to print on a large canvas?

I took a photograph and the information tells me it is 3008x2000 and 2.2 MB. It's a darker image of two people and their reflections in a window. I'm trying to get it printed on a canvas by ...
4
votes
5answers
798 views

How can I resize more than 2GB of travel photography with no quality compromise?

I have more then two gigabytes of travel photography. Each image takes up than 4 to 5 megabytes. I have to send them to some one. How can I resize all images while retaining high image quality?
4
votes
2answers
558 views

How can I export reduced resolution RAW files from Lightroom?

I read that in Lightroom 4 is possible to export reduced resolution raw files. Does anybody know how to do it?
2
votes
1answer
603 views

Does reducing JPG resolution decrease, increase, or have no effect on image quality?

I'm getting ready to download a bunch of images from microstock photo agency Dreamstime. I'll eventually want most of the images in the 400x300 pixel range for my website when I'm done working with ...
2
votes
3answers
182 views

Does size reduction in a fine quality JPEG photograph introduce noise?

Does size reduction in a fine quality JPEG photograph introduces noise? I use Gwenview to reduce the size of the JPEG photographs. Does that cause some noise introduction?
1
vote
2answers
257 views

How do I compose an image for use as a browser background or wallpaper on a widescreen monitor?

I want to use some of my images for the background of a web page in my browser and for computer desktop wallpaper on my widescreen notebook. When I use a (landscape oriented) picture as is (in a ...
5
votes
1answer
33k views

How can I upscale a low-res image to make it appear higher-res?

I want to enlarge an image to a bigger size. This will cause pixelation. So I want to apply some treatment to it in Photoshop that will suppress some of this pixelation. Of course I cannot generate ...
3
votes
3answers
233 views

Which is sharper, theoretically - small image at 100% or large image re-sized in Photoshop?

I take macro shots of watches and post them on the web (not intended for printing), typically 640x480px. I've been composing those shots in the 1504x1000px frame so that it shows the required size ...
8
votes
6answers
26k views

Is it possible to increase the pixel density of an image?

I have taken a picture whose resolution is less. I can resize the image easily (i.e I can scale to higher resolution) but the image quality goes for a toss, which is true because the image might not ...
4
votes
3answers
3k views

How can I resize Raw images and store them back in the original format?

I have some raw images captured using Canon,Nikon,Minolta cameras.(*.CR2, *.NEF, *.MRW) I want to change resize them and store them back as the original format. I checked in two tools, Canon ...
11
votes
3answers
520 views

How can one determine the ideal resampling algorithm for a given type of image?

Was reading this question and got to thinking. How exactly can you determine what the best resampling solution is? I have a concept, albeit somewhat vague, of what the basic methods do. Are there ...
17
votes
4answers
1k views

Does it give higher quality to shoot in low-res mode in-camera, or to downsize high-res photos later?

Suppose you want to store your photos at some lower resolution, let's say about ~1 MB large. You own a camera able to make photos at 5 MPix and more. And, you want to have the maximum quality at the ...
10
votes
2answers
853 views

How to preserve detail when downscaling scanned photos?

I'm mixing analog with digital photography — I tend to take better photos when I can't look at a small digital screen, unconsciously forcing me to take the picture before I shoot instead of checking ...
15
votes
1answer
789 views

Technical implementations of upscaling

So I've seen bicubic and fractal listed as methods of upscaling photos. What's the technical details behind how these work and why/when is one better than the other?
4
votes
1answer
320 views

Is this article correct about gamma error in picture scaling in common software?

That is kind of a "please proof-read an articles conclusion"-question. Some time ago I found this page: Gamma error in picture scaling. I grasp the point, that the luminosity-curve is not linear and ...
8
votes
2answers
3k views

What DPI should I resize my image to for best printing quality?

And my apologies if this sounds a bit too basic but I can't get my head around this. I have a digital image I took with my camera. 4000x3000 pixels, and GIMP claims that its resolution is 72x72 DPI. ...