ML
    • Recent
    • Categories
    • Tags
    • Popular
    • Users
    • Groups
    • Register
    • Login

    Gigapixel Images and File Sizes

    IT Discussion
    4
    15
    760
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • dafyreD
      dafyre
      last edited by

      I'm just curious if anybody out here has dealt with images in the gigapixel range?

      I'm just curious as to what kind of file sizes I'd be looking at for storing them.

      scottalanmillerS 1 Reply Last reply Reply Quote 0
      • scottalanmillerS
        scottalanmiller @dafyre
        last edited by

        @dafyre said in Gigapixel Images and File Sizes:

        I'm just curious if anybody out here has dealt with images in the gigapixel range?

        I'm just curious as to what kind of file sizes I'd be looking at for storing them.

        It's the compression that really determines this. Are you talking raw images?

        dafyreD 1 Reply Last reply Reply Quote 0
        • dafyreD
          dafyre @scottalanmiller
          last edited by

          @scottalanmiller said in Gigapixel Images and File Sizes:

          @dafyre said in Gigapixel Images and File Sizes:

          I'm just curious if anybody out here has dealt with images in the gigapixel range?

          I'm just curious as to what kind of file sizes I'd be looking at for storing them.

          It's the compression that really determines this. Are you talking raw images?

          Yeah. Just purely from a here's the # of bytes the image could be... A professor wants to do something with gigapixel images, but hasn't been able to give me any kind of file size estimates or the number of images they expect to hvae for this project, yet.

          1 Reply Last reply Reply Quote 0
          • dafyreD
            dafyre
            last edited by

            Found a site that gives a formula and steps on how they calculate file sizes...

            https://4nsi.com/faq/how-do-i-calculate-the-file-size-for-a-digital-image

            It's hard to know if it's accurate, but he math makes sense.

            scottalanmillerS 1 Reply Last reply Reply Quote 0
            • scottalanmillerS
              scottalanmiller @dafyre
              last edited by

              @dafyre said in Gigapixel Images and File Sizes:

              Found a site that gives a formula and steps on how they calculate file sizes...

              https://4nsi.com/faq/how-do-i-calculate-the-file-size-for-a-digital-image

              It's hard to know if it's accurate, but he math makes sense.

              Except it is completely wrong so the math making sense doesn't matter, since it's absolutely wrong. That's for calculating a bitmap file type, which no one uses.

              DashrenderD dafyreD 2 Replies Last reply Reply Quote 1
              • DashrenderD
                Dashrender @scottalanmiller
                last edited by

                @scottalanmiller said in Gigapixel Images and File Sizes:

                @dafyre said in Gigapixel Images and File Sizes:

                Found a site that gives a formula and steps on how they calculate file sizes...

                https://4nsi.com/faq/how-do-i-calculate-the-file-size-for-a-digital-image

                It's hard to know if it's accurate, but he math makes sense.

                Except it is completely wrong so the math making sense doesn't matter, since it's absolutely wrong. That's for calculating a bitmap file type, which no one uses.

                that's now how raw images are stored? Can you enlighten me?

                scottalanmillerS 2 Replies Last reply Reply Quote 0
                • scottalanmillerS
                  scottalanmiller @Dashrender
                  last edited by

                  @Dashrender said in Gigapixel Images and File Sizes:

                  @scottalanmiller said in Gigapixel Images and File Sizes:

                  @dafyre said in Gigapixel Images and File Sizes:

                  Found a site that gives a formula and steps on how they calculate file sizes...

                  https://4nsi.com/faq/how-do-i-calculate-the-file-size-for-a-digital-image

                  It's hard to know if it's accurate, but he math makes sense.

                  Except it is completely wrong so the math making sense doesn't matter, since it's absolutely wrong. That's for calculating a bitmap file type, which no one uses.

                  that's now how raw images are stored? Can you enlighten me?

                  Why would you talk about raw? That's not how you store images unless you are a nutter. Can you intentionally make storage a problem? Yes. But you can find ways to make it even bigger than that.

                  You compress images, this isn't the dark ages. That's why we have "image formats".

                  1 Reply Last reply Reply Quote 0
                  • scottalanmillerS
                    scottalanmiller @Dashrender
                    last edited by

                    @Dashrender said in Gigapixel Images and File Sizes:

                    Can you enlighten me?

                    Because uncompressed files are huge for no reason. Compressed files are small and practical. And essentially automatic, cameras will compress right in the camera when taking the picture. Have for decades. Using bitmaps directly is like a Windows 3.11 era problem back when lossless image compression was not public domain and standardized.

                    DashrenderD 1 Reply Last reply Reply Quote 1
                    • DashrenderD
                      Dashrender @scottalanmiller
                      last edited by Dashrender

                      @scottalanmiller said in Gigapixel Images and File Sizes:

                      @Dashrender said in Gigapixel Images and File Sizes:

                      Can you enlighten me?

                      Because uncompressed files are huge for no reason. Compressed files are small and practical. And essentially automatic, cameras will compress right in the camera when taking the picture. Have for decades. Using bitmaps directly is like a Windows 3.11 era problem back when lossless image compression was not public domain and standardized.

                      so all those out there that capture in raw and make changes in raw before converting to jpg, etc are nutters.. ok.

                      I'm not a photographer, I barely play one on vacation.

                      DustinB3403D scottalanmillerS 2 Replies Last reply Reply Quote 0
                      • DustinB3403D
                        DustinB3403 @Dashrender
                        last edited by

                        @Dashrender said in Gigapixel Images and File Sizes:

                        @scottalanmiller said in Gigapixel Images and File Sizes:

                        @Dashrender said in Gigapixel Images and File Sizes:

                        Can you enlighten me?

                        Because uncompressed files are huge for no reason. Compressed files are small and practical. And essentially automatic, cameras will compress right in the camera when taking the picture. Have for decades. Using bitmaps directly is like a Windows 3.11 era problem back when lossless image compression was not public domain and standardized.

                        so all those out there that capture in raw and make changes in raw before converting to jpg, etc.

                        Raw isn't unrealistic for photo studios, it's just a nature of the beast. The problem is that you keep raw only until you can compress and make whatever you need out of the raw.

                        If a client pays for a photoshoot, they are paying for time and raw photos, any editing etc is all done on compressed photos and the client would never get a raw of that.

                        scottalanmillerS 1 Reply Last reply Reply Quote 0
                        • scottalanmillerS
                          scottalanmiller @DustinB3403
                          last edited by

                          @DustinB3403 said in Gigapixel Images and File Sizes:

                          Raw isn't unrealistic for photo studios, it's just a nature of the beast. The problem is that you keep raw only until you can compress and make whatever you need out of the raw.

                          Right, MAYBE just in an initial transfer, but not storage.

                          1 Reply Last reply Reply Quote 1
                          • DashrenderD
                            Dashrender
                            last edited by

                            OK I'll give you that.. local storage from the camera to the editing device needs to worry about RAW storage, but archival storage never does. I can dig it.

                            scottalanmillerS 1 Reply Last reply Reply Quote 0
                            • scottalanmillerS
                              scottalanmiller @Dashrender
                              last edited by

                              @Dashrender said in Gigapixel Images and File Sizes:

                              so all those out there that capture in raw and make changes in raw before converting to jpg, etc are nutters.. ok.

                              They COMPRESS their raw, so yes, nutters if they go to uncompressed raw like you are describe. You are using raw to imply uncompressed.

                              The issue here is that you are not clear on what raw is and using it to mean something different. Yes, having raw files might make sense. Having uncompressed ones (why I said bitmap) does not.

                              https://en.wikipedia.org/wiki/Raw_image_format

                              "A camera raw image file contains minimally processed data from the image sensor of either a digital camera, a motion picture film scanner, or other image scanner.[1][2] Raw files are named so because they are not yet processed and therefore are not ready to be printed or edited with a bitmap graphics editor."

                              1 Reply Last reply Reply Quote 0
                              • scottalanmillerS
                                scottalanmiller @Dashrender
                                last edited by

                                @Dashrender said in Gigapixel Images and File Sizes:

                                OK I'll give you that.. local storage from the camera to the editing device needs to worry about RAW storage, but archival storage never does. I can dig it.

                                But even that is compressed. Raw and compressed is the standard, not raw uncompressed.

                                1 Reply Last reply Reply Quote 0
                                • dafyreD
                                  dafyre @scottalanmiller
                                  last edited by dafyre

                                  @scottalanmiller said in Gigapixel Images and File Sizes:

                                  @dafyre said in Gigapixel Images and File Sizes:

                                  Found a site that gives a formula and steps on how they calculate file sizes...

                                  https://4nsi.com/faq/how-do-i-calculate-the-file-size-for-a-digital-image

                                  It's hard to know if it's accurate, but he math makes sense.

                                  Except it is completely wrong so the math making sense doesn't matter, since it's absolutely wrong. That's for calculating a bitmap file type, which no one uses.

                                  You are right about nobody using bitmap files any more. I'm not looking for exact measurements -- or even conservative ones. Just an educated guess as to how big a gigapixel file could be.

                                  By using raw data, rather than worrying about how good of compression the chosen file type gets, I can simply estimate high on the amount of storage we'd need.

                                  1 Reply Last reply Reply Quote 0
                                  • 1 / 1
                                  • First post
                                    Last post