Shadowy Daisy

Shadowy Daisy
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JPEG is an adjustable "lossy" compression method commonly used in digital photograph. The most common filename extensions for images using the JPEG format are .jpg and .jpeg. Compare to alternative image formats such as TIFF and the various RAW formats.

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3answers
3k views

Make photos on Facebook nicer?

I upload photos to my Facebook page using the latest Lightroom. I'm wondering if there are some tips or tricks, or maybe hidden options on Facebook that makes the images served to the viewers higher ...
8
votes
4answers
7k views

How to identify photoshop-edited files

If I have saved an image in JPG format after doing some edits, is there a way to identify that it is edited with Photoshop?
1
vote
4answers
202 views

What makes RAW formats better for manipulation than JPEGs or PNGs [duplicate]

So I've seen everyone saying that RAW format is much better for manipulation in photo editing applications like Lightroom than JPEGs or PNGs. While I read some posts here like this and this, I'm ...
3
votes
5answers
3k views

Should I use Active D-Lighting when shooting Raw?

I understand (ref) that I can do my own post processing to get the same effect that Active D-Lighting gives. But does the in-camera ADL get applied to the raw image data or is it only done to the ...
39
votes
13answers
5k views

What are the pros and cons when shooting in RAW vs JPEG?

In general shooting in RAW format uses a lot more file storage than JPEG. What am I gaining when shooting RAW? Besides file size are there any downsides to shooting RAW?
1
vote
1answer
172 views

Why are images exported from Lightroom 6 different from the preview?

I currently have Dell U2711 monitor with Dell U2711 ICC profile (Adobe RGB preset mode) Windows 10 Adobe Lightroom 6 CC Image from Fujifilm X100 in both RAW (RAF) and JPEG Done very little else to ...
4
votes
3answers
381 views

Quality of JPEG directly from RAW+JPEG versus JPEG embedded in RAW of RAW+JPEG?

When I use ImageMagick's identify command to look at the quality of the JPEG from my camera's RAW+JPEG mode, I see 95. When I use the same to look at the JPEG preview that has been directly extracted ...
244
votes
13answers
44k views

Good examples of RAW's advantages over JPEG?

I'm curious to see some real examples of where simply capturing the same photo in RAW (and being processed by someone who can do it justice) has significantly improved the photo at the end of the ...
1
vote
3answers
8k views

How to preserve image quality when exporting psd file to jpeg?

my psd file is 9900px by 6600px and I want to export it to jpeg for a website. When I try to export it to jpeg with 72ppi and lower down pixel dimensions to about 1000px by 750px, the image comes out ...
1
vote
2answers
68 views

Recover broken images that are corrupt

I had some issues with my computer and sent it out for repairs to a reputable dealer. So far everything came back perfect. I sent it in to be cleaned up and to try and recover some photos that were ...
0
votes
1answer
55 views

How to recover original thumbnail of an edited image?

I would like to know if it is possible to recover the original version of an edited picture. The metadata of the picture in question indicates . "Hasthumbnail : False". So how is it possible to ...
0
votes
3answers
108 views

How do I compress my TIFF files to JPEGs of a given size?

An online lab wants my large (over 100 MB) TIFF files as 50 MB JPEGs with a maximum of 80 megapixels for making aluminum 16x24 inch prints. What about final resolution? How do I convert from one to ...
16
votes
10answers
5k views

Why use JPEG instead of RAW?

Why would a photographer want to capture images using the JPEG format over an available RAW format? The obvious argument is memory card storage, but assume that my available memory card storage is ...
8
votes
5answers
3k views

How to convert JPEG to RAW in Photoshop or similar?

I am having a competition in which I have to submit images in RAW format. But I have already clicked some images with Nikon D3200 in JPEG.Is there any way to convert JPEG to RAW format in Photoshop or ...
14
votes
9answers
11k views

How to delete JPG files, but only if the matching RAW file exists?

My early (Canon G2) photos are all JPG, but when I got my Nikon D90 I initially shot in JPG, then switched to RAW+JPG, and now I would like to switch to RAW only. I have literally thousands of photos ...
1
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1answer
66 views

How I can view the image taken from my Canon camera?

How can I see the images taken from my Canon camera. All files are converted into CTG and I could not open either in the camera nor on the PC.
-1
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1answer
5k views

how to convert CR2 to jpg in batches on digital photo professional 4.1

how to convert a batch of CR2 to jpg on digital photo professional 4.1 Step by step please.
1
vote
1answer
159 views

What's the difference between Raw Vs Raw+L mode?

Whats the difference between raw mode and raw+L mode on a digital camera? Which is best for commercial photography?
6
votes
2answers
397 views

How does the usual jpeg 0-100 quality settings translate into Photoshop's 0-12 quality setting?

JPEG encoders usually use a quality setting of 0-100, whereas Adobe photo software uses a 0-12 setting. Does anyone know how to convert between these? (I am actually not clear on whether the 0-100 ...
2
votes
1answer
94 views

How can I load, edit, and overwrite jpg files with Darktable?

This is a follow up to a question asked on askubuntu: http://askubuntu.com/questions/708759/color-adjustment-for-100-jpg-files-fast-workflow-for-savenext I want to do manual color adjustment for 100 ...
16
votes
2answers
2k views

Software that guesses which algorithm saved a given JPEG

Some time ago, I found a piece of software that would provide a good guess on the software/algorithm used to save a JPEG. If I recall correctly, it would analyze something like the compression ...
5
votes
2answers
122 views

In Lightroom, where are the equivalents of the “Comments” and “Subject” tags from Windows File Explorer?

I wrote some info on a couple JPEGs using Windows File Explorer. In Explorer, I wrote info on the "Comments" and the "Subject" tags. However, when I import the JPEGs into Adobe Lightroom, I can't find ...
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2answers
400 views

Why doesn't PNG show more detail than JPEG in a converted NASA image?

I have a really limited knowledge of photography, so, bearing that in mind, here is my problem. I downloaded an IMG file with a separate label file from NASA PDS because I wanted to visualise the ...
2
votes
1answer
251 views

Batch change CMYK JPG into YCbCr JPG?

I recently got a bunch of JPG photos but all are looking very strange colour wise – almost like colour negatives! My photo viewing program is saying they are all CMYK format but other ones ...
1
vote
4answers
338 views

Why does raw to jpg conversion differ in different editors?

I just started using RAW files (to be more correct I set my camera to RAW+JPG). Then I opened the raw file in RawTherapee and without doing any changes I exported it in jpg next to the jpg file ...
4
votes
1answer
174 views

Any reason not to set ALL photos to “300dpi”? [duplicate]

I run a site where multiple photographers upload and sell their photos to my users. Some of them just want to buy a JPEG, some of them want to buy a JPEG to print. You and I both know that a ...
18
votes
6answers
36k views

What quality to choose when converting to JPG?

When you export a picture to JPG you can normally choose its quality in a 1-100 scale. I like to keep a good quality but it wouldn't make sense to keep a JPG that will be almost as big as the original ...
4
votes
2answers
118 views

What's the perfectionist's workflow for taking a photograph from capture to print?

I'm interested in perfecting the 100% ideal method of doing things, keeping the color tones and quality through capturing to the printing and publishing. This isn't about handling the camera or doing ...
19
votes
3answers
18k views

How does Picasa process RAW photos?

How does Picasa decide how to process RAW photos? When I shoot in RAW+JPEG the two pictures can look dramatically different. Is it just converting the RAW files upon import, or is post-processing ...
1
vote
1answer
101 views

Cause of exiftool error (minor: PreviewImage) and should I be worried?

While sorting my images with exiftool "-directory<EXIF:DateTimeOriginal" -d %Y%m%d -ext jpg . for some of .JPGs exiftool reported an error Warning: [minor] Error reading PreviewImage from file -...
3
votes
1answer
206 views

Lightroom: how to import GPS location when adding DNG after JPG?

I do have the following problem: I imported many pics as JPG files, which contain GPS metadata and created collections etc. Now I added the corresponding DNG files so that Lightroom merges them. The ...
1
vote
1answer
331 views

What is the practical purpose of “use raw as original” in Photos for OS X?

Within OS X Photos app, when I shoot jpeg/raw and upload to Photos, I get an image representing both files. By default I am looking at the jpeg. Or I can choose a command "Use Raw as Original". I ...
5
votes
3answers
258 views

Is there a way to set white balance of a RAW to match the preview JPEG?

When I view ARWs in Lightroom, I sometimes find the white balance of the embedded preview JPEG to be perfect, so I'd like to apply it to the RAW. How do that I do that in LR or other (free) software? ...
4
votes
2answers
175 views

How to remove EXIF person tags created by Picasa?

I have many photos spread across several folders. Many photos contain EXIF person tags created by Picasa. How can I remove these tags? http://exiftool.sourceforge.net seems to be capable of doing the ...
3
votes
2answers
493 views

How can I strip tags from a JPEG without removing the color profile?

For a while now I have used exiftool to strip away unnecessary metadata from jpg files (and to add copyright information) before uploading them: exiftool -all= image.jpg However, today I noticed ...
0
votes
1answer
77 views

Corrupt jpeg will not open [duplicate]

I have a Maxtor external hard drive which I store many photos on in the camera's raw format and also the converted jpegs. I have the photos broken down into several folders on the drive. Recently, ...
4
votes
1answer
277 views

Does writing EXIF tags influence jpeg quality?

If I understand well then the EXIF data is written in an extra space of the JPEG file. When I add or modify an EXIF tag does this leave the picture untouched? I searched for this and I was not able to ...
1
vote
2answers
116 views

Does it make sense to use a RAW converter program on a compressed image?

I read so far about RAW converter programs. I downloaded LightZone for Linux, but have not used it yet. When people write about raw converter programs they mention the raw format of a picture, and ...
0
votes
2answers
153 views

Lossless modification of JPEGs according to XMP metadata

I have a bunch of photos in JPEGs (not in RAW or any other lossless format). I turned on the option "Include Develop settings in metadata inside JPEG" in Lightroom. If I understand it correctly, it ...
17
votes
6answers
121k views

Should I use JPG or TIFF for high-quality prints?

I am putting together a photo book. I shot all the photos in RAW. The prints will be 300pi on 13x11 inch glossy paper. I am laying out the pages in InDesign, which doesn't allow me to import and place ...
9
votes
4answers
9k views

Is there a tool to check the file integrity of a series of images?

Sometimes when you're downloading an image and the connection breaks mid stream, you are left with a half downloaded image. If you try to view it you get the upper part of the image and the bottom ...
21
votes
5answers
7k views

How can I add a border to a JPEG photo without affecting quality?

I have a photo in JPEG format with resolution 4680x3120. I want to add a white border around this photo, turning it into a 5200x3467 photo (for printing reasons). Clearly, I am not altering or ...
0
votes
2answers
136 views

Is a RAW-only camera economically justified? [closed]

Is a digital camera which could only take RAW images economically justified? considering that RAW files may need less in-camera processing.
27
votes
5answers
3k views

Why don't cameras support JPEG 2000 format?

The original JPEG format was updated in 2000 to provide a variety of features including less artifacts, better compression and lossless compression. Why haven't cameras updated to use this new format?...
6
votes
3answers
1k views

Can I do “back conversion” of a B&W JPEG to color?

I have a black and white JPEG. It is in fact an RGB image, which means that the color is still there. And I know from past experience that when I shoot B&W with my Canon, the color image is still ...
0
votes
3answers
202 views

Is it possible to do non-destructive JPG color correction?

I would like to perform color correction on my photos before printing so that my workflow will create reproducible prints. (i.e. the lab corrects my photos and I print them again later, they may be ...
0
votes
0answers
69 views

Is there an easy way to export photos from Lightroom in original format if they're unedited?

When I export a folder or collection from Lightroom, I want unedited photos exported in their original format, and edited photos exported in a chosen format, like JPEG. This is avoid JPEG-...
3
votes
6answers
2k views

Is there a way to export from lightroom to multiple formats simultaneously?

I frequently need to photograph my wife's textile works and output the results in several formats. She wants high quality, large jpegs; tiffs; and smallish jpegs for her web site, all of which go into ...
0
votes
2answers
124 views

Will resizing JPEGs result in a compromise in my image?

I have several images for print, and only after deleting the original RAW files did I remember I needed to resize the images for print. Will resizing JPEGs result in a compromise in my image? They ...
-4
votes
1answer
191 views

How do I reduce the file size of a jpeg image? [duplicate]

I have a photo in jpeg format that I am unable to reduce from 110 KB to 45kb. What software can do this?