python - OpenCV - Read a gray scale or monochrome image with alpha channel -


a similar question has been asked unanswered here.

how can read gray scale image in opencv alpha channel? example, if try read following image, 2d array of zeros.

enter image description here

image = cv2.imread('1.png', cv2.imread_unchanged) image.shape  (480, 960)


-

Comments

Post a Comment

Popular posts from this blog

php - Auto increment employee ID -

Image
i want add employee , after that, employee id increment. textbox must disabled also here's code. want auto increment employee id when add new employee. hope me. thank in advance. :) <center> <form class="contact_form" action="#" method="post"> <h2>register new employee</h2> <br/> <table> <tr> <td><label for="emp">emp id:</label></td> <td><input type="text" name="emp" placeholder="emp id" required /></td> </tr> <tr> <td><label for="name">name:</label></td> <td><input type="text" name="fname" placeholder="first name" required /> <input type="text" name="lname" placehol...
Read more

php - isset function not working properly -

the page unable see login form code written under isset function statement. have written code correctly , have executed many times , code written inside isset statement not works. here code:- <?php session_start(); echo "<p style=\"font-color: #ff0000;\"> catogoies </p>"; echo '<link href="var/www/html/sample.css" rel="stylesheet">'; require_once('../html/conn.php'); $query = "select * catogories"; mysqli_select_db($dbc, 'odit'); $retrieve = mysqli_query($dbc, $query); if(!$retrieve) { die(mysqli_error($query)); } while($row=mysqli_fetch_array($retrieve, mysql_assoc)){ echo "<p style=\"font-color: #ff0000;\">".'<a href="cats.php? catogory='.urldecode($row["name"]).'">'.$row["name"].'</a>'."</p>"; $_session['cat']=$row["name"]; } if(!($_session)) ...
Read more

firebird - Error "invalid transaction handle (expecting explicit transaction start)" executing script from Delphi -

i'm developing update app delphi 10. i'm running windows 7 64x, firebird 2.5.1.26351 32x. execution order: checks current version(select statement firebird database) downloads update(via ftp) apply it(.exe files, , execute .sql) error code -901 pops out when try execute .sql files. know there incompatibility issue w7 64x , fdb 32x, but, can everything: backup , restore(gbak), db commands(all). tried fdb 64x instead, , not working. code: //components fdwaitcursor: tfdguixwaitcursor; fddriverlink: tfdphysfbdriverlink; fdconnection:tfdconnection; fdscript: tfdscript; function tthr_script.createcomponents:boolean; begin try fddriverlink := tfdphysfbdriverlink.create(fddriverlink); fdwaitcursor := tfdguixwaitcursor.create(fdwaitcursor); fdconnection := tfdconnection.create(fdconnection); fdconnection begin drivername := 'fb'; params.username := thrbanco.bduser; params.password := thrbanco.bdpass; params.database := ...
Read more