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Questions tagged [blobs]

94 questions
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OpenCV: Incorrect contour around blobs

I'm trying to draw contours around blobs in a binary image, however, sometimes, openCV draws a single contour around two distinct blobs. below is an example. How can i solve this issue? Here it should draw two bounding boxes for the blob on the…
AtharvaI
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Blob constructor of javascript not working in safari browser

Can anyone help me out in solving this issue. I am using html blob in my JavaScript to download html grids into excel file. In Chrome and Mozilla its working fine but in safari browser it's showing error. The code and error is as follows: var uri =…
ajay kumar
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Blob data from Oracle to text file using python

I have been trying to get the blob data from oracle into a text file using Python. I couldn't find the answer on any of the other links. Below is my code : sql_string = """select event_id ,blob_length ,blob field from table""" …
Doodle
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Computing rectangle around pixel coordinates

I have a Qvector containing pixel coordinates of an image. The main goal would be to group those pixels regarding their distance to each other and getting a rectangle out of those groups of pixels. Every pixel in the vector are not close to each…
Robert Jones
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Create a Blob and open it in the browser with a desired URL

I have written the following code to create a file using a blob and open it automatically(instead of downloading) in the browser(Chrome). var saveData = (function () { var a = document.createElement("a"); document.body.appendChild(a); …
Hiran
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Get names of all Uri inside a specific Prefix in my Blob container

I'm trying to get everything in the "10" prefix, like this: https://ideesstorage.blob.core.windows.net/development-fotosproyectos/10/29.jpg So far I can only get this using the…
Rodrigo Campos-Cervera
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msSaveBlob issues on IE10 version 10.0.9200.16844

I am facing issues in using the msSaveBlob and msSaveOrOpenBlob methods on IE 10. These methods seem to be working on IE 11 and IE 10 version 10.0.9200.17183 but the API fails on IE 10 version 10.0.9200.16844. I am trying the Example 1 code on this…
Sarvesh
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Should I move big data blobs in JSON or in separate binary connection?

QUESTION: Is it better to send large data blobs in JSON for simplicity, or send them as binary data over a separate connection? If the former, can you offer tips on how to optimize the JSON to minimize size? If the latter, is it worth it to…
Amagrammer
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MySQL / PHP Drag and Drop File Upload

I am looking to upload files into a MySQL database using a drag and drop application. Any ideas? I want to be able to drag a file into the browser and then type in a file name. THANKS!
Michael
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ORACLE BLOB to FILE

I am writing some pl/sql to generate pdf reports that are stored as blobs in an oracle table. I need to loop through this table which has a column for filename and blob and write the blob to the OS as a file with the corresponding filename in the…
Misbah Elalami
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MySQL Blob to Text (data and datatype)

I have a mysql database that holds content as a blob, for whatever reason those developers chose to use a blob is out of my control. Is it possible to convert the data to text and the data type to text?
Jeffrey
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How to get extra information of blobs with SimpleBlobDetector?

@robot_sherrick answered me this question, this is a follow-up question for his answer. cv::SimpleBlobDetector in Opencv 2.4 looks very exciting but I am not sure I can make it work for more detailed data extraction. I have the following concerns:…
Barney Szabolcs
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Renew the blob lease if blob.upload takes more than 60 seconds

I know that we can acquire a lease on a blob for 60 seconds or infinite.For the following code: var account = CloudStorageAccount.DevelopmentStorageAccount; var blob = account.CreateCloudBlobClient().GetBlobReference("container/blob"); var…
Vivek Misra
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create my own blob detection in C

I'm doing a little school project and for that I need to detect a white paper sheet. I tried to see if I can do the blob detection with OpenCV, but OpenCV is not my area. I want to do my own blob detection for the sheet. I tried to search for…
Ruben Veiga
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Azure tables, blobs

Just starting to study the Azure framework. Just say you create a row in the Table storage. You then create a Bob in the Blob storage, Is there some way you can correlate what you just added to the Table with the Blob you just created? Or anytime…
TheWommies
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