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Questions tagged [rescaling]

The tag has no usage guidance.

3
votes
1answer
171 views

Should I resize photos before or after image optimization?

I am a software dev who appreciates stunning imagry in sites I build, but am also very conscious of page size. My workflow has me adjusting image sizes to the maximum resolution they will be displayed ...
0
votes
2answers
486 views

Can I restore an image to original size and dpi after reducing its size?

I have reduced size of images and put them in a Word document. Can I get the original size and dpi back (I did not save the original!)
2
votes
2answers
132 views

Simulating increasing image distance

I have a set of aerial images, but no information about the original camera or angular resolution of the photos. I need to in some way decrease the resolution of the images in a way that simulates ...
7
votes
1answer
152 views

At which point do cameras scale photos down when using quarter sensor resolution?

My Nikon D5600 sensor can deliver 24MP but I configured it to just use 6MP. At which step in the process does the camera "scales" the images down? Maybe already at sensor level? By calculating an '...
3
votes
2answers
218 views

How to resize images in place in Lightroom

Generally, I take and store all of my images in RAW in Lightroom. If I capture a beautiful moment, I want to be able to access all of that beauty at any time in the future. But there are exceptions. ...
1
vote
1answer
522 views

Photoshop and mac not printing correct size?

Probably a silly question but any help appreciated. Trying to print from photoshop CC on MacBook to Epson 9600. Images printing smaller than expected. For example, I've just tried to print a 6x8" ...
1
vote
1answer
1k views

How to scale up an image for print. How large can i go? [duplicate]

I have an approximately 2500 pixel x 3500 pixel image. How do I figure out the largest print that I can get from it? At the 300 dpi printing standard that would only yield about 8x12" but I need ...
-1
votes
2answers
88 views

How can I retain apparent detail when downsizing from 4608px to a 150px thumbnail?

I shot profile pictures in RAW at a resolution of 4608(V)x3456(H). The client needs an image for their email signature with a width of approximately 150px wide. I have attempted this in PSCC2017 (with ...
2
votes
3answers
342 views

What are the advantages of editing a larger image?

If I have an image which is 2000px by 2000px, and the same image at 500px x 500px, what are the advantages of editing the larger image and scaling down afterwards?
2
votes
4answers
148 views

Is photo sharpness different at different sizes?

I've been reading a lot about image sharpness lately. The only thing I haven't seen discussed is photo size. I know that when you zoom in on a photo, it becomes pixelated quickly. So would the ...
0
votes
2answers
1k views

Best software for upsampling to about 2x?

I have some high-quality RAW files I've processed (some cropping, contrast adjustment, etc.). I need to have them printable at about twice the size I get with the ppi set to 240. I've been looking ...
1
vote
2answers
162 views

High vs low res original image, both later scaled to equal lower resolution - difference in sharpness?

If I take a Canon 5DS R (50.6 MP), which has high resolution and no anti-aliasing filter, and then I take a Canon 6D (20.2 MP) and shoot the same scene with both, both using the same capable lens (i.e....
2
votes
1answer
745 views

Expand Canvas and Extend Edges of Image to Fill It

Hopefully this is the right place to ask this type of question. I am editing a digital photo (in gimp), and need to increase canvas size slightly. At one point, I was watching a tutorial where they ...
4
votes
3answers
309 views

How to resize a photo?

I know this is really a noob question, but it has always confused me. If something says "Images must be 210 px high and up to 375 px wide." how do I do that? I assume one uses a program to do it, but ...
1
vote
2answers
106 views

resizing a picture [duplicate]

I entered a charity calendar competition and the picture of my cat won, but when they tried to make it larger to put on their 2016 calendar it wasn't a good enough quality. It was blurred. I was ...
0
votes
1answer
2k views

How can I limit size to a maximum rectangle (rather than just a square) when exporting in DXO OpticsPro?

I'm trying DXO OpticsPro 10. Its export function allows image resampling by specifying Largest size : However, I need to resize my images so that they fit into a specified rectangular. How can I do ...
2
votes
2answers
106 views

How do I correctly enlarge thermographic images for web use?

I'm helping a friend of mine who owns a company that does infrared analysis of structures. He wants to put a gallery of thermal images on his website, but his extremely expensive camera only takes ...
1
vote
0answers
35 views

What my PPI should be set at for others to download my photos? [duplicate]

I sell my photos on Etsy for others to buy and download and I'm trying to figure out what I should set my PPI at and if I should resample when I do it...it is all very confusing. I'm reading all ...
0
votes
1answer
537 views

How do you downsample an image in Photoshop CS6?

I've tried reducing size but the quality is greatly reduced as well, not to mention custom pixel ratios will make it look ridiculous. What should i do? EDIT: I have used a 1936 X 2592 JPEG picutre ...
3
votes
3answers
2k views

How to remaster images from an early digital camera?

Background: I've got a lot of old photos taken by my first digital camera Epson PhotoPC 600 from 1997 and I'd love to make them look as good as possible. I do know they'll never look like those from ...
6
votes
5answers
2k views

How can I detect upscaled photos?

I have a collection of JPEG photos, each 500 to 600 pixels on the longest side. How can I detect which ones have been algorithmically enlarged from a substantially smaller photo? An online ...
4
votes
2answers
784 views

Are there any downsides to scaling down unsharp images?

To keep my personal image catalog compact, I am considering scaling down all images that are unsharp for one reason or another, but are interesting or valuable enough not to delete them altogether. I ...
14
votes
3answers
12k 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?
10
votes
3answers
9k 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 them to JPG?
3
votes
1answer
145 views

Is there a tool which will resize photos based on level of actual detail in the original?

As part of my organisation workflow I like to scale 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
239 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
139 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
196 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 ...
1
vote
3answers
200 views

How to post process a B/W photo to improve printing

I'm willing to print a black and white picture with quite big dimension (more or less, 3x2 feet), but the image has pretty low resolution and appears quite blury. I was wondering which kind of post ...
0
votes
1answer
605 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
203 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, ...
5
votes
2answers
550 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
2answers
1k 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
11k 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
1k 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
9k 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 ...
5
votes
3answers
1k 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 ...
9
votes
11answers
15k views

What program can automatically resize & crop a folder of images to a certain resolution?

I'd like to take a folder of images of various sizes and have them cropped into a 600x600 grid square, cut out from the middle of the image. Is there a program that can automatically resize and crop ...
-1
votes
2answers
1k 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?
2
votes
3answers
4k 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
1k 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
918 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
1k 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
248 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
450 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 ...
18
votes
4answers
96k 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
256 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 on-...
10
votes
6answers
96k views

Is it possible to scale up an image to increase the the pixel density?

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
6k 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 Digital ...
12
votes
3answers
922 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 ...