"Capture" not working

[wjwieland]

Steps to reproduce

1. Open Image or series
2. Select "Capture"
3. Select "Download" from the resultant preview window

Expected behaviour

I assume I should be offered a place to save the 'filename'.png

Actual behaviour

Nothing happens at all

Server configuration

Operating system: Distributor ID: Ubuntu Description: Ubuntu 18.04.1 LTS Release: 18.04 Codename: bionic

Web server: Apache 2

Database: Mysql 5.7.24.0ubuntu

PHP version: 7.2

Nextcloud version: (see Nextcloud admin page) 14.04

Where did you install Nextcloud from: NextCloud repository

List of activated apps: Skip to main contentSkip to navigation of app Accessibility 1.0.1 Official Activity 2.7.0 Official AppOrder 0.6.0 Calendar 1.6.4 Official Collaborative tags 1.4.0 Official Comments 1.4.0 Official Contacts 2.1.8 Official Deleted files 1.4.1 Official DICOM Viewer 1.0.2 External sites 3.1.0 Official Federation 1.4.0 Official File sharing 1.6.2 Official First run wizard 2.3.0 Official Gallery 18.1.0 Official Log Reader 2.0.0 Official Monitoring 1.4.0 Official Music 0.9.3 Nextcloud announcements 1.3.0 Official Notifications 2.2.1 Official Passman 2.2.1 Password policy 1.4.0 Official PDF viewer 1.3.2 Official Radio 0.6.4 Share by mail 1.4.0 Official Support 1.0.0 Official Tasks 0.9.8 Text editor 2.6.0 Official Theming 1.5.0 Official Update notification 1.4.1 Official Usage survey 1.2.0 Official Versions 1.7.1 Official Video player 1.3.0 Official Auditing / Logging 1.4.0 Official Default encryption module 2.2.0 Official External storage support 1.5.0 Official External user support 0.4 Official LDAP user and group backend 1.4.0 Official OPDS catalog 0.8.8 Reader (ebook reader) 1.2.3

If you have access to your command line run e.g.:
sudo -u www-data php occ app:list
from within your Nextcloud installation folder

Nextcloud configuration:

If you have access to your command line run e.g.:
sudo -u www-data php occ config:list system

sudo -u www-data php occ config:list system
{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "wjwieland.dvrdns.org",
            "localhost",
            "192.168.0.15"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "overwrite.cli.url": "https:\/\/wjwieland.dvrdns.org\/nextcloud",
        "dbtype": "mysql",
        "version": "14.0.4.2",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "mysql.utf8mb4": true,
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "memcache.local": "\\OC\\Memcache\\APCu",
        "enabledPreviewProviders": [
            "OC\\Preview\\Image",
            "OC\\Preview\\MP3",
            "OC\\Preview\\TXT",
            "OC\\Preview\\MarkDown",
            "OC\\Preview\\Epub",
            "OC\\Preview\\PDF",
            "OC\\Preview\\MSOfficeDoc",
            "OC\\Preview\\MSOffice2003",
            "OC\\Preview\\MSOffice2007",
            "OC\\Preview\\OpenDocument",
            "OC\\Preview\\StarOffice",
            "OC\\Preview\\FB2"
        ],
        "maintenance": false,
        "theme": "",
        "loglevel": 2,
        "updater.release.channel": "stable",
        "updater.secret": "***REMOVED SENSITIVE VALUE***",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpmode": "smtp",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpsecure": "tls",
        "mail_smtpauthtype": "PLAIN"
    }
}

### Client configuration
**Browser:**
Chromium Version 71.0.3578.80 (Official Build) Built on Ubuntu , running on Ubuntu 18.04 (64-bit) 
**Operating system:**
SAA

### Logs

#### Nextcloud log (data/owncloud.log)
{"reqId":"NXf7UCx2FNhTCMkGePhu","level":3,"time":"2018-05-03T02:24:04+00:00","remoteAddr":"71.48.125.124","user":"wjw","app":"PHP","method":"POST","url":"\/nextcloud\/index.php\/index.php","message":"RecursiveDirectoryIterator::__construct(\/var\/www\/nextcloud): failed to open dir: Permission denied at \/var\/www\/nextcloud\/lib\/private\/IntegrityCheck\/Checker.php#134","userAgent":"Mozilla\/5.0 (X11; Linux x86_64) AppleWebKit\/537.36 (KHTML, like Gecko) Chrome\/66.0.3359.117 Safari\/537.36","version":"13.0.2.1"}
Insert your Nextcloud log here

Browser log

Insert your browser log here, this could for example include:

JQMIGRATE: Migrate is installed, version 1.4.0 index.js:2 Setting default viewer data index.js:2 LayoutManager constructor index.js:2 LayoutManager updateViewports index.js:2 LayoutManager setDefaultViewportData index.js:2 LayoutManager getDisplaySetSequenceMap index.js:2 LayoutManager isDisplaySetsSequenced index.js:2 imageViewerViewport loadDisplaySetIntoViewport /nextcloud/index.php/apps/files/?dir=/DICOM&fileid=162#dcmviewer:1 Failed to decode downloaded font: https://wjwieland.dvrdns.org/nextcloud/apps/dicomviewer/css/external/font-awesome/fonts/fontawesome-webfont.woff2 /nextcloud/index.php/apps/files/?dir=/DICOM&fileid=162#dcmviewer:1 OTS parsing error: Failed to convert WOFF 2.0 font to SFNT

[ayselafsar]

Thanks for the report. It looks like it doesn't work with big image size. If you reduce image size (something like 512x512), it should work. However, i will take a look at the issue for the next release.

[wjwieland]

Thank you! I will give that a try and report back... Again, thank you for the quick response. It is much appreciated!

[wjwieland]

I took a number of captures starting at a low resolution (512x512) and worked my way up. The max resolution I could get to work on some images was 1792x1792, which is not bad at all. Others I tried were able to be captured at higher or lower resolutions. So it seems to depend on the the original image. At this point, I have not identified specific parameters that might determine the capture-able image size. I can only say that the first image was from a CAT scan, and the second from an MRI.

Now that I know what to work with, this is much less of an issue. I use these images to help my oncologist understand what I am talking about (specific areas of concern via the providers software(Mychart by EPIC systems). It is a fantastic tool for such communications. Previously, I was using an image capture tool called 'scrot' (I run Linux exclusively) to screen capture the images to send to the oncologist. Now that I know what to play with via the dicom viewer tool on NextCloud, it removes the extras step of having to fire up another tool. Thanks!

If there was one suggestion I might make, it would be to offer the option of saving as a .jpg format. Some provider software systems will only accept certain formats. I can guess that supporting too many would bloat dicomviewer, so I understand if this is not an option.

Out of curiosity: Is it possible to determine the max capture size from the dicom attributes 'Rows' and 'columns'? Or perhaps that is what is happening already? Just curios...

Thanks again! Great tool! Highly valuable in communicating with health care providers.

[ayselafsar]

Great, I am happy to hear that helps you!

You can currently change file type to JPEG to save as .jpeg format. If you need .jpg extension, you can rename .jpeg to .jpg manually for now and I can add .jpg extension in the next version.

It currently does not restrict max size based on the original image size. I agree that there is an issue with the original big image sizes. I will take a closer look when I have time.

[wjwieland]

Thanks for the quick turn-around in responding. Now that I have the ability to save from the built in capture functionality, even if limited somewhat, this becomes pretty low priority in my view.

Regarding the .jpg/jpeg format: My color scheme did not show the .jpg selection available in the drop-down box until I actually scrolled down and selected it which is why I did not see it. Now that I have done so, the selection shows up (CSS text color issue perhaps?). At any rate, whether .jpg or .jpeg should not matter as there is no real difference. So that can be removed from the list of things to do as far as I am concerned.

Thanks again for the great work and responsiveness here.

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity and seems to be missing some essential information. It will be closed if no further activity occurs. Thank you for your contributions.

[github-actions[bot]]

This issue was closed because it has been stalled for 60 days with no activity.