Shinyapps - how to display images (>10mb) without getting out of memory?

[sundsoy]

Have anyone experienced issues when trying to display larger images at Shinyapps (>10 mb).
Works fine locally, but getting out of memory and loose connection all the time at shinyapps.
Thanks

Demo :
https://sundsoy.shinyapps.io/shinyapps_test/

See code below:

 
library(shinydashboard)
library(shiny)
library(shinycssloaders)
library(shinyWidgets)   
library(dashboardthemes) 
library(plotly)
library(BiocManager)
options(repos = BiocManager::repositories())



library(EBImage)    # Read Image (png + jpeg)
library(pryr)


#                                  UI   
#################################################################################
options(shiny.maxRequestSize = 30*1024^2) # max 30 mb file size 
options(expressions = 500000)

sidebar <- dashboardSidebar(
  sidebarMenu(
    fileInput(   "file1", "Choose image File", accept = c(".jpg",".png") ),
    menuItem(    "test", tabName = "dashboard", icon = icon("dashboard")) 
  )
)



body <- dashboardBody(
  shinyDashboardThemes( theme = "grey_dark" ),
  tabItems(
    tabItem(tabName = "dashboard",
 fluidRow(  
              plotlyOutput("org_image")
        )   
      )   
  )
 )
 

ui <-  dashboardPage(
  dashboardHeader(title = "test"),
  sidebar,
  body
)



 
#                                  SERVER   
#################################################################################
server <- function(input, output, session) {
 
#--------------------------------------------------------------------------------
#                                Org image 
#--------------------------------------------------------------------------------
 output$org_image <- plotly::renderPlotly({     
      plot_ly(type="image",z=img()*255) 
 })   
 
#--------------------------------------------------------------------------------
#                                  Read image  
#--------------------------------------------------------------------------------
  img <- reactive({
    inFile<-input$file1 
    if (is.null(inFile$datapath)){     } 
    else {   
      file <- inFile$datapath 
      img <-   EBImage::readImage(file )  %>% EBImage::resize(h=250) %>% EBImage::rotate(270 )
      print(pryr::object_size(img))
      img
    }
  })
   
}

shinyApp(ui, server)