Re: [darktable-user] export specific size
Am 19.02.2018 um 18:15 schrieb darkta...@911networks.com: On Mon, 19 Feb 2018 07:04:27 +0100 Remco Viëtor wrote: On lundi 19 février 2018 05:51:23 CET darkta...@911networks.com wrote: DT 2.4.1 How do I set the export selected size. I need: 8" tall x 10" wide @ 300dpi ==> 2400 pixels tall x 3000 pixels wide * If i use 2400 x 3000 in the max size global option, I get: Image Size : 2400x1947 (exiftool) * If I use 0x0, I get: Image Size : 4263x3459 * If I use 3000x3000, I get: Image Size : 3000x2434 (close) Is there a way of getting exactly 2400x3000? No, not through the export dialog, the "Crop" module should help here, though. 3000/2434 = 1.23 4263/3459 = 1.23 2400/1947 = 1.23 10"/8"= 1.25... Two problems: 1 - Your image has a different aspect ratio than your paper (1.23 vs 1.25). Darktable chooses to keep the aspect ratio of the image, while fitting it within the specified rectangle. Of, course, darktable could stretch/shrink the image to fit, I suppose... 2 - in your first attempt, you swapped the width and height: darktable expects the output format as 'width x height', so for your case '3000 x 2400', you asked for '2400 x 3000' output. (see the mouse-over popups) Actually, I didn't express myself properly. 1. I just check and my crop is actually 8x10 https://i.imgur.com/5TpnxUx.png (crop module) 2. What should I put in the export selected size for 8 tall by 10 wide with the correct crop? Just 3000 x 0 darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
Re: [darktable-user] export specific size
Bernhard schrieb am 19.02.2018 um 18:41: darkta...@911networks.com schrieb am 19.02.2018 um 18:15: On Mon, 19 Feb 2018 07:04:27 +0100 Remco Viëtor wrote: On lundi 19 février 2018 05:51:23 cetdarkta...@911networks.com wrote: DT 2.4.1 How do I set the export selected size. I need: 8" tall x 10" wide @ 300dpi ==> 2400 pixels tall x 3000 pixels wide * If i use 2400 x 3000 in the max size global option, I get: Image Size : 2400x1947 (exiftool) * If I use 0x0, I get: Image Size : 4263x3459 * If I use 3000x3000, I get: Image Size : 3000x2434 (close) Is there a way of getting exactly 2400x3000? No, not through the export dialog, the "Crop" module should help here, though. 3000/2434 = 1.23 4263/3459 = 1.23 2400/1947 = 1.23 10"/8"= 1.25... Two problems: 1 - Your image has a different aspect ratio than your paper (1.23 vs 1.25). Darktable chooses to keep the aspect ratio of the image, while fitting it within the specified rectangle. Of, course, darktable could stretch/shrink the image to fit, I suppose... 2 - in your first attempt, you swapped the width and height: darktable expects the output format as 'width x height', so for your case '3000 x 2400', you asked for '2400 x 3000' output. (see the mouse-over popups) Actually, I didn't express myself properly. 1. I just check and my crop is actually 8x10 https://i.imgur.com/5TpnxUx.png (crop module) 2. What should I put in the export selected size for 8 tall by 10 wide with the correct crop? Do you export to jpg? Might be an issue with block size of that format? - Just a guess but perhaps someone with more knowledge might judge on that ... https://en.wikipedia.org/wiki/JPEG#Block_splitting I just tried crop 4x5 landscape and export size 3000x3000 and got 3000x2400 both in jpg and tiff. In portrait same results ... so above doesn't seem to matter in this case. -- regards Bernhard https://www.bilddateien.de darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
Re: [darktable-user] export specific size
darkta...@911networks.com schrieb am 19.02.2018 um 18:15: On Mon, 19 Feb 2018 07:04:27 +0100 Remco Viëtor wrote: On lundi 19 février 2018 05:51:23 CET darkta...@911networks.com wrote: DT 2.4.1 How do I set the export selected size. I need: 8" tall x 10" wide @ 300dpi ==> 2400 pixels tall x 3000 pixels wide * If i use 2400 x 3000 in the max size global option, I get: Image Size : 2400x1947 (exiftool) * If I use 0x0, I get: Image Size : 4263x3459 * If I use 3000x3000, I get: Image Size : 3000x2434 (close) Is there a way of getting exactly 2400x3000? No, not through the export dialog, the "Crop" module should help here, though. 3000/2434 = 1.23 4263/3459 = 1.23 2400/1947 = 1.23 10"/8"= 1.25... Two problems: 1 - Your image has a different aspect ratio than your paper (1.23 vs 1.25). Darktable chooses to keep the aspect ratio of the image, while fitting it within the specified rectangle. Of, course, darktable could stretch/shrink the image to fit, I suppose... 2 - in your first attempt, you swapped the width and height: darktable expects the output format as 'width x height', so for your case '3000 x 2400', you asked for '2400 x 3000' output. (see the mouse-over popups) Actually, I didn't express myself properly. 1. I just check and my crop is actually 8x10 https://i.imgur.com/5TpnxUx.png (crop module) 2. What should I put in the export selected size for 8 tall by 10 wide with the correct crop? Do you export to jpg? Might be an issue with block size of that format? - Just a guess but perhaps someone with more knowledge might judge on that ... https://en.wikipedia.org/wiki/JPEG#Block_splitting -- regards Bernhard https://www.bilddateien.de darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
Re: [darktable-user] export specific size
On Mon, 19 Feb 2018 07:04:27 +0100 Remco Viëtor wrote: >On lundi 19 février 2018 05:51:23 CET darkta...@911networks.com >wrote: >> DT 2.4.1 >> >> How do I set the export selected size. >> >> I need: 8" tall x 10" wide @ 300dpi ==> 2400 pixels tall x 3000 >> pixels wide >> >> * If i use 2400 x 3000 in the max size global option, I get: Image >> Size : 2400x1947 (exiftool) >> * If I use 0x0, I get: Image Size : 4263x3459 >> * If I use 3000x3000, I get: Image Size : 3000x2434 (close) >> >> Is there a way of getting exactly 2400x3000? >No, not through the export dialog, the "Crop" module should help >here, though. > >3000/2434 = 1.23 >4263/3459 = 1.23 >2400/1947 = 1.23 >10"/8"= 1.25... > >Two problems: >1 - Your image has a different aspect ratio than your paper (1.23 vs >1.25). Darktable chooses to keep the aspect ratio of the image, >while fitting it within the specified rectangle. Of, course, >darktable could stretch/shrink the image to fit, I suppose... > >2 - in your first attempt, you swapped the width and height: >darktable expects the output format as 'width x height', so for your >case '3000 x 2400', you asked for '2400 x 3000' output. (see the >mouse-over popups) Actually, I didn't express myself properly. 1. I just check and my crop is actually 8x10 https://i.imgur.com/5TpnxUx.png (crop module) 2. What should I put in the export selected size for 8 tall by 10 wide with the correct crop? -- sknahT vyS darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
Re: [darktable-user] export specific size
On lundi 19 février 2018 05:51:23 CET darkta...@911networks.com wrote: > DT 2.4.1 > > How do I set the export selected size. > > I need: 8" tall x 10" wide @ 300dpi ==> 2400 pixels tall x 3000 > pixels wide > > * If i use 2400 x 3000 in the max size global option, I get: Image > Size : 2400x1947 (exiftool) > * If I use 0x0, I get: Image Size : 4263x3459 > * If I use 3000x3000, I get: Image Size : 3000x2434 (close) > > Is there a way of getting exactly 2400x3000? No, not through the export dialog, the "Crop" module should help here, though. 3000/2434 = 1.23 4263/3459 = 1.23 2400/1947 = 1.23 10"/8"= 1.25... Two problems: 1 - Your image has a different aspect ratio than your paper (1.23 vs 1.25). Darktable chooses to keep the aspect ratio of the image, while fitting it within the specified rectangle. Of, course, darktable could stretch/shrink the image to fit, I suppose... 2 - in your first attempt, you swapped the width and height: darktable expects the output format as 'width x height', so for your case '3000 x 2400', you asked for '2400 x 3000' output. (see the mouse-over popups) darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
